Ошибка соединения ice ошибка 1007

Dear users and king developers!
I have the same issue! clients can join on listen mode, can share webcam, but they cant share microphone and receive «Connection failure (ICE error 1007)»
I can’t handle the issue, run turn server, open TCP ports 16384 — 32768 too, nothing change!
the only way is to use wan IP valid in free_switch: sip_ip: … and change the value of local_ip_v4 in «/usr/local/bigbluebutton/bbb-webrtc-sfu/config/default.yml» to valid wan IP, but when they set to the default of Lan local IP, we have error 1007!
Please help me, we have spent a lot of time on it! :(

Источник

I have installed bbb on my intranet behind a NAT/Firewall and i use Chrome browser. It’s work fine in https mode with any station or Smartphone i use in local mode.
When i try with a station in «external» mode (internet) i get «ICE error 1007». I saw in documentation that i need to install a Turn server and i had do it using following this procedure https://docs.bigbluebutton.org/2.2/setup-turn-server.html but error 1007 is staying. Is somebody could help me? See below my check
BigBlueButton Server 2.2.5 (1848)
Kernel version: 4.15.0-96-generic
Distribution: Ubuntu 16.04.6 LTS (64-bit)
Memory: 32925 MB
CPU cores: 16

/usr/share/bbb-web/WEB-INF/classes/bigbluebutton.properties (bbb-web)
bigbluebutton.web.serverURL: https://mydomain.com
defaultGuestPolicy: ALWAYS_ACCEPT
svgImagesRequired: true

/etc/nginx/sites-available/bigbluebutton (nginx)
server name: mydomain.com
port: 80, [::]:80
port: 443 ssl
bbb-client dir: /var/www/bigbluebutton

/var/www/bigbluebutton/client/conf/config.xml (bbb-client)
Port test (tunnel): rtmp://mydomain.com
red5: mydomain.com
useWebrtcIfAvailable: true

/opt/freeswitch/etc/freeswitch/vars.xml (FreeSWITCH)
local_ip_v4: 192.168.0.16
external_rtp_ip: MON_IP_PUBLIC
external_sip_ip: MON_IP_PUBLIC

/opt/freeswitch/etc/freeswitch/sip_profiles/external.xml (FreeSWITCH)
ext-rtp-ip: $${external_rtp_ip}
ext-sip-ip: $${external_sip_ip}
ws-binding: :5066
wss-binding: :7443

/usr/local/bigbluebutton/core/scripts/bigbluebutton.yml (record and playback)
playback_host: mydomain.com
playback_protocol: https
ffmpeg: 4.2.2-1bbb1~ubuntu16.04

/etc/bigbluebutton/nginx/sip.nginx (sip.nginx)
proxy_pass: MON_IP_PUBLIC

/usr/local/bigbluebutton/bbb-webrtc-sfu/config/default.yml (Kurento SFU)
kurento.ip: 192.168.0.16
kurento.url: ws://127.0.0.1:8888/kurento
localIpAddress: 192.168.0.16
recordScreenSharing: true
recordWebcams: true
codec_video_main: VP8
codec_video_content: VP8

/usr/share/meteor/bundle/programs/server/assets/app/config/settings.yml (HTML5 client)
build: 874
kurentoUrl: wss://mydomain.com/bbb-webrtc-sfu
enableListenOnly: true

Potential problems described below

IP does not match:

IP from ifconfig: 192.168.0.16

/etc/nginx/sites-available/bigbluebutton: mydomain.com

Warning: API URL IPs do not match host:

IP from ifconfig: 192.168.0.16

/var/lib/tomcat7/demo/bbb_api_conf.jsp: mydomain.com

Warning: The setting of MON_IP_PUBLIC for proxy_pass in

/etc/bigbluebutton/nginx/sip.nginx

does not match the local IP address (192.168.0.16).

(This is OK if you’ve manually changed the values)

Warning: The API demos are installed and accessible from:

https://mydomain.com

and

https://mydomain.com/demo/demo1.jsp

These API demos allow anyone to access your server without authentication

to create/manage meetings and recordings. They are for testing purposes only.

If you are running a production system, remove them by running:

apt-get purge bbb-demo

Rgds
Chris

The most frequent user complains about BigBlueButton are WebRTC issues: 1007 and 1020.

I am going to tell you how to fix this complain for good. No more 1007 or 1020!

Running the BigBlueButton client requires a wide range of UDP ports to be available for WebRTC communication.

However, in some network restricted sites, such as those behind NAT or a corporate firewall that restricts UDP connections, users may be unable to make outgoing UDP connections to your BigBlueButton server. These are the users who get 1007 and 1020 errors.

By setting up a separate TURN server, you can allow users to have the TURN server (connected via port 443) proxy their UDP-based WebRTC media (audio, webcam, and screen share) to the BigBlueButton server.

We recommend Ubuntu 20.04 as it has a newer version of Coturn than Ubuntu 16.04.

The server does not need to be very powerful as it will only relay communications from the BigBlueButton client to the BigBlueButton server when necessary. A dual core server virtual server should be sufficient for a dozen BigBlueButton servers.

Installing a Turn server is super simple with bbb-install.sh, which installs and configures the Coturn server that acts as both Stun and Turn server.

wget -qO- https://ubuntu.bigbluebutton.org/bbb-install.sh | bash -s -- -c : -e

With this straightforward installation and some optimizations (LimitNOFILE=1048576), you will be able to get rid of 1007/1020 errors for almost 100%.

Don’t forget to test whether your Turn server is working:

  1. You can force using the TURN on Firefox browser.
  2. Open a Firefox tab and type about:config. Search for media.peerconnection.ice.relay_only.
  3. Set it to true. At this moment Firefox only use TURN relay.
  4. Now join a BigBlueButton session for this Firefox browser to see Turn server in action.
  5. In another tab on Firefox, type about:webrtc to see the status of webrtc.
  6. Click on show details to see the url of stun/turn server being used with success message.

In some cases you may still get 1007/1020 complains!

That happens when your Turn server fails!

Either Turn server is down or is overwhelmed by hundreds of simultaneous user requests.

For high-availability of your Turn server, use dns round robin routing on AWS Route 53.

  1. First install two Turn servers as directed above with two ‘A’ records in Route 53: turn1.higheredlab.com and turn2.higheredlab.com. Ensure that you setup Turn servers in the region that is closer to your users to avoid network latency.
  2. Second, create another ‘A’ record in Route 53, for example turn.higheredlab.com, that does weightage routing to the two Turn Servers.
  3. Add Health Check so that if one Turn server goes down, requests are directed to the other Turn server.
  4. Setup SNS notification so that you get an email alert right away that one of your Turn server is down.

I hope this helps in conducting better online classes on BigBlueButton!

Some MynaParrot BBB users reported receiving this ICE 1007 error message when attempting to join the meeting.

Then we need to figure out why this is happening and figure out how to fix it. You may suspect that it is due to bigbluebutton server or html5 client issues, or that it is related to IP address or port 80.

BigBlueButton is a web conferencing system that is free and open source. It is web-based, so you must use a browser to participate in the meeting. The advantage is that users do not need to download and install any applications on their devices. However, it will necessitate the user configuring some browser settings, particularly the first time. However, while it is generally acceptable and simple to use, you may encounter some issues.

Today we are going to address this common issue for the BigBlueButton user.

ice 1007 reasons

For a short answer, the error caused by a firewall. 

WebRTC errors

1007: ICE negotiation failed — The browser and FreeSWITCH try to negotiate ports to use to stream the media, and that negotiation failed. Possible Causes:

NAT is blocking the connection

The firewall is blocking the UDP connection/ports

WebRTC offers very high-quality audio. However, the user’s network settings (or firewall) may not allow WebRTC to connect (or keep connected).

ice 1007 Solutions

First and foremost, as a developer, you must examine your BigBlueButton server configuration. If your server does not have a TURN server configuration, your users will encounter difficulties if they access from behind a firewall. If you configure the TURN server, you should see better results.

You can find instructions on how to set up the TURN server in this official BigBlueButton Development Doc.

https://docs.bigbluebutton.org/admin/setup-turn-server.html

If you are confident that you have correctly installed and configured the TURN server. However, the user may still encounter this issue. What are other options? From our experience, the most practical way to solve it from the user’s perspective is to try the following methods:

  • Try again a few times, and it may resolve itself.
  • Restart your computer or mobile device if possible.
  • Try a different browser or update your browser to the most recent version.
  • If possible, switch to a different internet provider.
  • Experiment with different devices.

The cause is sometimes a problem caused by unknown factors. It takes time to detect or solve it; however, as a user, you may only have a few minutes to resolve this issue because you need to enroll in a course. As a result, try those suggestions as soon as possible and see if they work. According to our experience, if your BigBlueButton server is correctly configured, then try those solutions from the user’s end, and the problem will be resolved.

If you still aren’t able to solve the problem by doing these. Please contact us, and we will assist you in resolving this issue as soon as possible. If you don’t have an account, try it free from here: https://mynaparrot.com/en/try-it-for-free

You can integrate with your Moodle, WordPress, Chamilo, or other LMS in minutes. After that, you can test it to see if the BigBlueButton ICE 1007 error messages continue to appear.

Check our BigBlueButton services & BigBlueButton Hosting.

    If you encountered any problems with the installation of BigBlueButton, this section covers how to resolve many of the common issues.

    If you have not already done so, read through the getting help section.

    Introduction

    Start here: run sudo bbb-conf --check

    We’ve built in a BigBlueButton configuration utility, called bbb-conf, to help you configure your BigBlueButton server and troubleshoot your setup if something doesn’t work right.

    If you think something isn’t working correctly, the first step is enter the following command.

    This will check your setup to ensure the correct processes are running, the BigBlueButton components have correctly started, and look for common configuration problems that might prevent BigBlueButton from working properly.

    If you see text after the line ** Potential problems described below **, then it may be warnings (which you can ignore if you’ve change settings) or errors with the setup.

    Recording

    Recording not processing after upgrading

    If after updating from BigBlueButton 2.0 to BigBlueButton 2.2 your recordings are not processing, and if you are seeing Permission denied errors in /var/log/bigbluebutton/bbb-rap-worker.log

    I, [2019-06-07T14:26:09.034878 #14808]  INFO -- : /usr/lib/ruby/2.5.0/logger.rb:754:in `initialize': Permission denied @ rb_sysopen - /var/log/bigbluebutton/presentation/process-02feca80700b3e95b877af85db972904397857a1-1559909318977.log (Errno::EACCES)

    You can resolve the errors with the following command

    $ sudo chown -hR bigbluebutton:bigbluebutton /var/log/bigbluebutton/presentation /var/log/bigbluebutton/screenshare

    and then rebuild the recordings that had not yet processed. You can see the list of recordings with

    and then to rebuild a recording, use sudo bbb-record --rebuild <internal_meeting_id>, as in

    $ sudo bbb-record --rebuild 298b06603719217df51c5d030b6e9417cc036476-1559314745219

    Webcams/screen sharing aren’t working

    Certify that appropriate external addresses have been set for mediasoup. When installed via packages, mediasoup IPs are normally misconfigured. If installed via bbb-install, then IPv4 is generally correct, but IPv6 might be absent.

    Nonetheless, we recommend double-checking the instructions in Updating mediasoup.

    Configure mediasoup to use IPv6

    mediasoup (bbb-webrtc-sfu) does not come with a IPv6 enabled by default when installed either via packages or bbb-install.

    To configure IPv6, bbb-webrtc-sfu’s override configuration file (located in /etc/bigbluebutton/bbb-webrtc-sfu/production.yml) should be used.

    See Updating mediasoup for instructions and examples on how to do so.

    I’m having troubles seeing webcams or screen sharing in Firefox

    That’s usually the symptom of a known Firefox issue where it doesn’t comply with ICE-lite implementations (and mediasoup is one).

    This issue can be worked around by forcing TURN usage in Firefox user agents. To achieve that, set the public.kurento.forceRelayOnFirefox configuration to true in /etc/bigbluebutton/bbb-html5.yml. For example:

    public:
  kurento:
    forceRelayOnFirefox: true

    How often does this Firefox issue happens?

    Short (non) answer: that’s difficult to measure.

    Every Firefox installation is prone to the lack of ICE-lite spec compliance. However, the issue doesn’t manifest itself on all Firefox installations as it is dependent on how the end user’s network topology is organized. It’s generally a small subset of Firefox users, but that can vary depending on the user base.

    Where can I track progress on a definitive solution or better workaround?

    This is a Firefox bug, so the best place to get an overview on progress and what the issue is about is Mozilla’s issue.

    You can also track BigBlueButton’s issue for updates on additional workarounds.

    Why isn’t forceRelayOnFirefox enabled by default?

    It’s not on by default because bigbluebutton does not come with a TURN server by default, and that’s what versioned-in-code setting presumes.

    How do I know if mediasoup is being used?

    The most direct and precise way to figure out whether mediasoup is being used is checking about:webrtc (Firefox) or chrome://webrtc-internals. For example: open one of those, share a camera. Look for the remote description (SDP); see if it contains mediasoup-client in the SDP header. If it does, you’re using mediasoup.

    Regardless of that: mediasoup is the default in 2.5 and should always be used unless default settings were explicitly changed.

    mediasoup is the default in 2.5. Why is Kurento still around?

    Because Kurento is still used for stream recording. It should be removed as a dependency as soon as this issue is addressed.

    Is single-core performance still important with mediasoup?

    Yes.

    How can I control the number of mediasoup workers?

    To control the number of mediasoup workers, bbb-webrtc-sfu’s override configuration file (located in /etc/bigbluebutton/bbb-webrtc-sfu/production.yml) should be used.

    There are a couple of configurations of interest here:

    mediasoup.workers

    This configuration controls the number of mediasoup workers intended for general use (media type agnostic, shared pool).

    Accepted values are:

    • "auto" (default): creates ceil((min(nproc,32) * 0.8) + (max(0, nproc - 32) / 2)) workers;
    • "cores": creates workers up to the host’s core count (as provided by os.cpus().length);
    • <Number>: overrides the number of workers with a fixed value;
    • The default and fallback values are auto.

    For example:

    • To set the number of workers to cores: yq w -i /etc/bigbluebutton/bbb-webrtc-sfu/production.yml mediasoup.workers "cores"

    mediasoup.dedicatedMediaTypeWorkers

    This configuration controls the number of mediasoup workers to be used by specific media types.
    If a dedicated pool is set, streams of its media type will always land on it. Otherwise, they will use the shared pool.

    The configuration is an object of the following format:

    mediasoup.dedicatedMediaTypeWorkers:
   audio: "auto"|"cores"|<Number>
   main: "auto"|"cores"|<Number>
   content: "auto"|"cores"|<Number>

    The semantics of auto, cores and Number are the same as in the mediasoup.workers configuration. Default values for all media types are 0 (no dedicated workers).

    The media types semantics are:

    • audio: audio (listen only, microphone) streams;
    • main: webcam video streams;
    • content: screen sharing streams (audio and video).

    For example:

    • To set the number of dedicated audio workers to auto: yq w -i /etc/bigbluebutton/bbb-webrtc-sfu/production.yml mediasoup.dedicatedMediaTypeWorkers.audio "auto"

    Can I scale the number of streams up indefinitely with mediasoup?

    No. Scalability improves a lot with mediasoup, but there are still a couple of bottlenecks that can be hit as far as far as the media stack is concerned. Namely:

    • The signaling server (bbb-webrtc-sfu): it does not scale vertically indefinitely. There’s always work ongoing on this area that can be tracked in this issue;
    • The mediasoup worker balancing algorithm implemented by bbb-webrtc-sfu is still focused on multiparty meetings with a restrained number of users. If your goal is thousand-user 1-N (streaming-like) meetings, you may max out CPU usage on certain mediasoup workers even though there are other idle oworkers free.

    Kurento

    WebRTC video not working with Kurento

    Check the value for /proc/sys/net/ipv4/tcp_syncookies that it contains the value 1.

    $ cat /proc/sys/net/ipv4/tcp_syncookies
1

    If not, edit /etc/sysctl.conf and set the value for net.ipv4.tcp_syncookies to 1.

    net.ipv4.tcp_syncookies = 1

    Save the file and restart.

    Unit kurento-media-server.service is masked

    If sudo bbb-conf --check returns the warning

    Restarting BigBlueButton 2.0.0-RC9 (and cleaning out all log files) ...
Stopping BigBlueButton
 ... cleaning log files
Starting BigBlueButton
Failed to start kurento-media-server.service: Unit kurento-media-server.service is masked.

    You can unmask Kurento using the command

    $ systemctl unmask kurento-media-server.service

    The default installation of BigBlueButton should work in most netowrk configurations; however, if your users ae behind a restrictive network that blocks outgoing UDP connections, they may encounter 1020 errors (media unable to reach server).

    If you get reports of these errors, setup TURN server to help their browsers send WebRTC audio and video streams via TCP over port 443 to the TURN server. The TURN server will then relay the media to your BigBlueButton server.

    See Configure TURN.

    FreeSWITCH

    Configure BigBluebutton/FreeSWITCH to support IPV6

    The HTML5 client now enables users on mobile devices to connect to a BigBlueButton server. However, on some cellular networks iOS devices only receive an IPV6 address.

    To enable BigBlueButton (FreeSWITCH) to accept incoming web socket connections on IPV6, the BigBlueButton server must have an IPV6 address. You also need to make the following changes to the server.

    First, create the file /etc/nginx/conf.d/bigbluebutton_sip_addr_map.conf with this content:

    map $remote_addr $freeswitch_addr {
    "~:"    [2001:db8::1];
    default    192.0.2.1;
}

    replacing the ip addresses 192.0.2.1 with the system’s external IPV4 addresses, and replace 2001:db8::1 with the system’s external IPV6 address. Next, edit the file /etc/bigbluebutton/nginx/sip.nginx to have the following:

    proxy_pass https://$freeswitch_addr:7443;

    Next, ensure all of the following params are present in freeswitch’s sip_profiles/external-ipv6.xml:

    • ws-binding
    • wss-binding
    • rtcp-audio-interval-msec
    • rtcp-video-interval-msec
    • dtmf-type
    • liberal-dtmf
    • enable-3pcc

    If any are missing, copy them from sip_profiles/external.xml, then restart BigBlueButton (sudo bbb-conf --restart).

    FreeSWITCH fails to bind to IPV4

    In rare occasions after shutdown/restart, the FreeSWITCH database can get corrupted. This will cause FreeSWITCH to have problems binding to IPV4 address (you may see error 1006 when users try to connect).

    To check, look in /opt/freeswitch/var/log/freeswitch/freeswitch.log for errors related to loading the database.

    2018-10-25 11:05:11.444727 [ERR] switch_core_db.c:108 SQL ERR [unsupported file format]
2018-10-25 11:05:11.444737 [ERR] switch_core_db.c:223 SQL ERR [unsupported file format]
2018-10-25 11:05:11.444759 [NOTICE] sofia.c:5949 Started Profile internal-ipv6 [sofia_reg_internal-ipv6]
2018-10-25 11:05:11.444767 [CRIT] switch_core_sqldb.c:508 Failure to connect to CORE_DB sofia_reg_external!
2018-10-25 11:05:11.444772 [CRIT] sofia.c:3049 Cannot Open SQL Database [external]!

    If you see these errors, clear the FreeSWITCH database (BigBlueButton doesn’t use the database and FreeSWITCH will recreate it on startup).

    $ sudo systemctl stop freeswitch
$ rm -rf /opt/freeswitch/var/lib/freeswitch/db/*
$ sudo systemctl start freeswitch

    Forward calls from an Asterisk server to FreeSWITCH

    Let’s assume the following:

    asterisk server ip:          192.168.1.100
bigbluebutton/freeswitch ip: 192.168.1.200

    Changes to your Asterisk server

    Setup your gateway to BigBlueButton/FreeSWITCH. in /etc/asterisk/sip.conf add

    [fs-gw]
type=peer
username=fs-gw
insecure=very
contactpermit=192.168.1.200/255.255.255.255
qualify=no
nat=yes
host=192.168.1.200
canreinvite=no
disallow=all
allow=ulaw

    Route the calls to the gateway. In /etc/asterisk/extensions.conf context where your calls are being handled, forward the calls to the gateway. Here, when someone dials 85001, the call is sent to the fs-gw defined above.

    exten => 85001,1,Dial(SIP/fs-gw/${EXTEN})
exten => 85001,2,Hangup

    Changes to your BigBlueButton/FreeSWITCH server

    In BigBlueButton/FreeSWITCH, make the following changes:

    Lock down so that only Asterisk can forward calls to FreeSWITCH. In /opt/freeswitch/conf/autoload_configs/acl.conf.xml, add the following ACL. We also need to allow BigBlueButton to call into FreeSWITCH, that’s why we add the IP of BigBlueButton/FreeSWITCH into the ACL.

        <list name="asterisk-gw" default="deny">
       <node type="allow" cidr="192.168.1.200/32"/>
       <node type="allow" cidr="192.168.1.100/32"/>
       <node type="allow" cidr="127.0.0.1/32"/>
    </list>

    Then we apply the ACL into the profile that receives the calls from external gateways. In /opt/freeswitch/conf/sip_profiles/external.xml, add the ACL under <settings>

      <settings>
    <!-- Apply ACL from asterisk-gw -->
    <param name="apply-inbound-acl" value="asterisk-gw"/>
...
</settings>

    To debug, try connecting to FS CLI and increase logging level. Once connected, make your call and see what the logs say.

    $ /opt/freeswitch/bin/fs_cli -p $(xmlstarlet sel -t -m 'configuration/settings/param[@name="password"]' -v @value /opt/freeswitch/etc/freeswitch/autoload_configs/event_socket.conf.xml)

  Once connected:
  help -- shows the available commands
  console loglevel <level> -- change log level

  Ctrl-D to exit

    FreeSWITCH fails to bind to port 8021

    FreeSWITCH supports both IPV4 and IPV6. However, if your server does not support IPV6, FreeSWITCH will be unable to bind to port 8021. If you run sudo bbb-conf --check and see the following error

    # Error: Found text in freeswitch.log:
#
#    Thread ended for mod_event_socket
#
# FreeSWITCH may not be responding to requests on port 8021 (event socket layer)
# and users may have errors joining audio.
#

    it might be that your server has IPV6 disabled (or does not support it). You can check this by running the following command

    $ sudo ip addr | grep inet6
inet6 ::1/128 scope host
...

    If you do not see the line inet6 ::1/128 scope host, then your server has IPV6 disabled. In this case, we need to disable FreeSWITCH’s support for IPV6. First, edit /opt/freeswitch/etc/freeswitch/autoload_configs/event_socket.conf.xml and change the line

        <param name="listen-ip" value="::"/>

    to

        <param name="listen-ip" value="127.0.0.1"/>

    This tells FreeSWITCH that instead of binding port 8021 to the local IPV6 address, bind to the IPV4 address 127.0.0.1. Next, execute the following two commands

    $ sudo mv /opt/freeswitch/etc/freeswitch/sip_profiles/internal-ipv6.xml /opt/freeswitch/etc/freeswitch/sip_profiles/internal-ipv6.xml_
$ sudo mv /opt/freeswitch/etc/freeswitch/sip_profiles/external-ipv6.xml /opt/freeswitch/etc/freeswitch/sip_profiles/external-ipv6.xml_

    and then restart BigBlueButton with the commands

    $ sudo bbb-conf --clean
$ sudo bbb-conf --check

    FreeSWITCH fails to start with a SETSCHEDULER error

    When running in a container (like a chroot, OpenVZ or LXC), it might not be possible for FreeSWITCH to set its CPU priority to real-time round robin. If not, it will result in lower performance compared to a non-virtualized installation.

    If you running BigBlueButton in a container and an error starting FreeSWITCH, try running systemctl status freeswitch.service and see if you see the error related to SETSCHEDULER

    $ systemctl status freeswitch.service
● freeswitch.service - freeswitch
   Loaded: loaded (/lib/systemd/system/freeswitch.service; enabled; vendor preset: enabled)
   Active: inactive (dead) (Result: exit-code) since Mon 2017-10-02 16:17:29 UTC; 18s ago
  Process: 10967 ExecStart=/opt/freeswitch/bin/freeswitch -u freeswitch -g daemon -ncwait $DAEMON_OPTS (code=exited, status=214/SETSCHEDULER)
 Main PID: 3327 (code=exited, status=0/SUCCESS)

Oct 02 16:17:29 scw-9e2305 systemd[1]: Failed to start freeswitch.
Oct 02 16:17:29 scw-9e2305 systemd[1]: freeswitch.service: Unit entered failed state.
Oct 02 16:17:29 scw-9e2305 systemd[1]: freeswitch.service: Failed with result 'exit-code'.
Oct 02 16:17:29 scw-9e2305 systemd[1]: freeswitch.service: Service hold-off time over, scheduling restart.
Oct 02 16:17:29 scw-9e2305 systemd[1]: Stopped freeswitch.
Oct 02 16:17:29 scw-9e2305 systemd[1]: freeswitch.service: Start request repeated too quickly.
Oct 02 16:17:29 scw-9e2305 systemd[1]: Failed to start freeswitch.

    If you see SETSCHEDULER in the error message, edit /lib/systemd/system/freeswitch.service and comment out the line containing CPUSchedulingPolicy=rr (round robin)

    IOSchedulingPriority=2
#CPUSchedulingPolicy=rr
CPUSchedulingPriority=89

    Save the file, run systemctl daemon-reload, and then restart BigBlueButton. FreeSWITCH should now startup without error.

    Users not able to join Listen Only mode

    When doing sudo bbb-conf --check, you may see the warning

    voice Application failed to register with sip server

    This error occurs when bbb-apps-sip isn’t able to make a SIP call to FreeSWITCH. You’ll see this in BigBlueButton when users click the headset icon and don’t join the voice conference.

    One possible cause for this is you have just installed BigBlueButton, but not restarted it. The packages do not start up the BigBlueButton components in the right order. To restart BigBlueButton, do the following:

    $ sudo bbb-conf --restart
$ sudo bbb-conf --check

    If you don’t want FreeSWITCH to bind to 127.0.0.1, you need to figure out which IP address its using. First, determine the IP address FreeSWITCH is monitoring for incoming SIP calls with the following command:

    $ netstat -ant | grep 5060

    You should see an output such as

    tcp        0      0 234.147.116.3:5060    0.0.0.0:*               LISTEN

    In this example, FreeSWITCH is listening on IP address 234.147.116.3. The IP address on your server will be different.

    Next, edit /usr/share/red5/webapps/sip/WEB-INF/bigbluebutton-sip.properties and set the value for sip.server.host to the IP address returned from the above command. Save the changes (you’ll need to edit the file as root to save changes).

    Restart BigBlueButton using the commands and run the built-in diagnostics checks.

    $ sudo bbb-conf --clean
$ sudo bbb-conf --check

    Unable to connect using fs_cli

    As of BigBlueButton 2.2.18, the packaging now replaces the default ClueCon password for connecting to the FreeSWITCH command line interface (fs_cli) with a random password.

    (By default, FreeSWITCH only allowed unauthenticated connections from 127.0.0.1, but it’s still good security practice to not use default passwords).

    To connect to fs_cli, use the following command which supplies the password for authenticating.

    /opt/freeswitch/bin/fs_cli -p $(xmlstarlet sel -t -m 'configuration/settings/param[@name="password"]' -v @value /opt/freeswitch/etc/freeswitch/autoload_configs/event_socket.conf.xml)

    We also added /usr/local/bin/fs_clibbb with the contents

    #!/bin/bash

/opt/freeswitch/bin/fs_cli -p $(xmlstarlet sel -t -m 'configuration/settings/param[@name="password"]' -v @value /opt/freeswitch/etc/freeswitch/autoload_configs/event_socket.conf.xml)

    that will let you type fs_clibbb at the command prompt to get into FreeSWITCH console.

    Echo test hangs upgrading BigBlueButton 2.2

    The install scripts now change the default CLI password for FreeSWITCH and the other parts of BigBlueButton need to use this new password. For a new installation, the install scripts will automatically set this new password.

    If you upgrade using bbb-install.sh, the script will update the FreeSWITCH password using sudo bbb-conf --setip <hostname>.

    If you upgraded using manual steps, be sure to do ao sudo bbb-conf --setip <hostname> to sync all the FreeSWITCH passwords.

    FreeSWITCH using default stun server

    For many years, in BigBlueButton’s FreeSWITCH configuration file /opt/freeswitch/etc/freeswitch/vars.xml, the default value for external_rtp_ip was stun.freeswitch.org

      <X-PRE-PROCESS cmd="set" data="external_rtp_ip=stun:stun.freeswitch.org"/>

    However, this is not a reliable choice for stun server. Recommend either changing it to your servers external IP address or setup your own stun/turn server. For example, if your server has an external IP at 234.32.3.3

      <X-PRE-PROCESS cmd="set" data="external_rtp_ip=234.32.3.3"/>

    You can add a line in /etc/bigbluebutton/bbb-conf/apply-conf.sh to always apply this value even if the FreeSWITCH package upgrades.

    xmlstarlet edit --inplace --update '//X-PRE-PROCESS[@cmd="set" and starts-with(@data, "external_rtp_ip=")]/@data' --value "external_rtp_ip=234.32.3.3" /opt/freeswitch/conf/vars.xml

    Note: If your server has an internal/exteral IP address, such as on AWS EC2 server, be sure to set it to the external IP address configure a dummy network interface card (see Update FreeSWITCH).

    HTML5 Server

    bbb-html5 fails to start with a SETSCHEDULER error

    As of 2.2.31, the systemd unit file for bbb-html5.service now contains the following lines

    CPUSchedulingPolicy=fifo
Nice=19

    You can override this with creating the following directory

    mkdir /etc/systemd/system/bbb-html5.service.d

    and creating /etc/systemd/system/bbb-html5.service.d/override.conf with the following contents

    [Service]
CPUSchedulingPolicy=other
Nice=-10

    Then do systemctl daemon-reload and restart BigBlueButton.

    Installation and packages

    The following packages have unmet dependencies

    When installing the latest build of BigBlueButton, the package bbb-conf now uses yq to manage YAML files.

    You need to add the repository ppa:rmescandon/yq to your server. For steps on how to do this, see Update your server in the BigBlueButton 2.2 install guide.

    Alternatively, if you have not made any customizations to BigBlueButton (outside of using bbb-conf), you can use bbb-install.sh to install/upgrade to the latest version (the bbb-install.sh script will automatically install the repository for yq).

    No Symbolic Link

    If you’ve installed/uninstalled BigBlueButton packages, you may get a No Symbolic Link warning from bbb-conf --check:

    ** Potential Problems **
    nginx (conf): no symbolic link in /etc/nginx/sites-enabled for bigbluebutton

    To solve this, add a symbolic link to nginx for the BigBlueButton site:

    $ sudo ln -s /etc/nginx/sites-available/bigbluebutton /etc/nginx/sites-enabled/bigbluebutton
$ sudo /etc/init.d/nginx restart

    Package install fails with sed error

    Some of the BigBlueButton packages use sed scripts to extract contents from configuration files. If the file does not exist at the time of the script’s execution, or the sed script matches multiple entries in a file (such as when a configuration line is commented out), you can see an error such as

    Setting up bbb-client (1:2.0.0-374) ...
sed: -e expression #1, char 42: unterminated `s' command
dpkg: error processing package bbb-client (--configure):
 subprocess installed post-installation script returned error exit status 1
dpkg: dependency problems prevent configuration of bbb-config:
 bbb-config depends on bbb-client; however:
  Package bbb-client is not configured yet.

dpkg: error processing package bbb-config (--configure):
 dependency problems - leaving unconfigured
Errors were encountered while processing:
 bbb-client
 bbb-config
E: Sub-process /usr/bin/dpkg returned an error code (1)

    In the above example, the /var/lib/dpkg/info/bbb-client.postinst failed to finish. To debug, edit this file and change the first line to read

    and run

    $ sudo apt-get install -f

    You should now see each command in bbb-conf.postinst as it executes upto the line in which the error occurs. Post this output to https://groups.google.com/forum/#!forum/bigbluebutton-setup for help in resolving the issue.

    Errors with packages

    Some hosting providers do not provide a complete /etc/apt/source.list. If you are finding your are unable to install a package, try replacing your /etc/apt/sources.list with the following

    deb https://archive.ubuntu.com/ubuntu xenial main restricted universe multiverse
deb https://archive.ubuntu.com/ubuntu xenial-updates main restricted universe multiverse
deb https://security.ubuntu.com/ubuntu xenial-security main restricted universe multiverse

    then do

    and try installing BigBlueButton again from the beginning.

    WebRTC errors (1001, 1002,…)

    WebRTC offers very high-quality audio. However, the user’s network settings (or firewall) may not allow WebRTC to connect (or keep connected).

    Here are the following lists the possible WebRTC error messages that a user may encounter:

    • 1001: WebSocket disconnected — The WebSocket had connected successfully and has now disconnected. Possible Causes:
      • Loss of internet connection
      • Nginx restarting can cause this
    • 1002: Could not make a WebSocket connection — The initial WebSocket connection was unsuccessful. Possible Causes:
      • Firewall blocking ws protocol
      • Server is down or improperly configured
      • See potential solution here.
    • 1003: Browser version not supported — Browser doesn’t implement the necessary WebRTC API methods. Possible Causes:
      • Out of date browser
    • 1004: Failure on call — The call was attempted, but failed. Possible Causes:
      • For a full list of causes refer here
      • There are 24 different causes so I don’t really want to list all of them
      • Solution for this issue outlined here.
    • 1005: Call ended unexpectedly — The call was successful, but ended without user requesting to end the session. Possible Causes:
      • Unknown
    • 1006: Call timed out — The library took too long to try and connect the call. Possible Causes:
      • Previously caused by Firefox 33-beta on Mac. We’ve been unable to reproduce since release of FireFox 34
    • 1007: ICE negotiation failed — The browser and FreeSWITCH try to negotiate ports to use to stream the media and that negotiation failed. Possible Causes:
      • NAT is blocking the connection
      • Firewall is blocking the UDP connection/ports
    • 1008: Call transfer failed — A timeout while waiting for FreeSWITCH to transfer from the echo test to the real conference. This might be caused by a misconfiguration in FreeSWITCH, or there might be a media error and the DTMF command to transfer didn’t go through (In this case, the voice in the echo test probably didn’t work either.)
    • 1009: Could not fetch STUN/TURN server information — This indicates either a BigBlueButton bug (or you’re using an unsupported new client/old server combination), but could also happen due to a network interruption.
    • 1010: ICE negotiation timeout — After the call is accepted the client’s browser and the server try and negotiate a path for the audio data. In some network setups this negotiation takes an abnormally long time to fail and this timeout is set to avoid the client getting stuck.
    • 1020: Media cloud could not reach the server — See how to solve this here.

    Networking

    Server running behind NAT

    The following issue might be helpful in debugging if you run into errors and your server is behind NAT.

    Could not get your microphone for a WebRTC call

    Chrome requires (As of Chrome 47) that to access the user’s microphone for WebRTC your site must be serving pages via HTTPS (that is, nginx is configured with a SSL certificate).

    If the user attempts to share their microphone and your BigBlueButton sever is not configured for SSL, Chrome will block access and BigBlueButton will report the following error

    WebRTC Audio Failure: Detected the following WebRTC issue: Could not get your microphone for a WebRTC call. Do you want to try flash instead?

    To enable Chrome to access the user’s microphone, see Configure HTTPS on BigBlueButton.

    The browser is not supported

    When you attempt to join a BigBlueButton session, the client looks for supported browsers before fully loading. The client gets its list of supported browsers from /usr/share/meteor/bundle/programs/server/assets/app/config/settings.yml. You can see the list of supported browsers at the bottom. For example,

    - browser: mobileSafari
  version:
    - 11
    - 1

    states that Mobile Safari version 11.1 or later is supported (notice the first letter is lower case and concatenated with the remainder of the browser name).

    To add a browser to the list, first find your browser’s useragent. You could use a tool like https://wtools.io/check-my-user-agent as well. For example, with the Vivaldi browser you might see

    Vivaldi 2.8.1664 / Linux 0.0.0

    Next, to add this as a supported browser, append to settings.yml

    - browser: vivaldi
  version:
    - 2
    - 8

    save the updated settings.yml file, and then restart your BigBlueButton server with sudo bbb-conf --restart. Note any browser you add must support WebRTC libraries (not all do), so be sure to check it first with https://test.webrtc.org/.

    Tomcat shows “Cannot assign requested address on startup”

    If your server has multiple IP addresses, Tomcat might not pick the right address to bind. This could throw an error on installation when tomcat is attempting to install.

    Check /var/log/tomcat7/catalina.out for the following error

    Jan 30, 2018 9:17:37 AM org.apache.catalina.core.StandardServer await
SEVERE: StandardServer.await: create[localhost:8005]:
java.net.BindException: Cannot assign requested address (Bind failed)
 at java.net.PlainSocketImpl.socketBind(Native Method)

    If you see this, first ensure that there isn’t another copy of tomcat running by doing ps -aef | grep tomcat7. If you do see another copy running, try killing it and then restarting tomcat.

    If you still see the same error in catalina.out, then /etc/tomcat7/server.xml and change

    <Server port="8005" shutdown="SHUTDOWN">

    <Server address="0.0.0.0" port="8005" shutdown="SHUTDOWN">

    Restart tomcat7 again and it should start normally.

    nginx not running

    The common reasons for nginx not running are inability to bind to port 80 and configuration errors. To check if port 80 is already in use, use

    to see if any process is currently bound to port 80. If so, check to see if another web server is installed. If so, then stop the web server and try to restart nginx. One of the server requirements before you install BigBlueButton is that port 80 is not in use by another application (such as Apache). For details on why this is a requirements, see We recommend running BigBlueButton on port 80.

    If port 80 is free, check if your nginx configuration file has errors. Try a restart of nginx

    $ sudo systemctl restart nginx

    and look for the output of

       [ OK ]

    If you see [ Fail ], then your nginx configuration files might have a syntax error. Check the syntax of the nginx configuration files using the command

    and see if it reports any errors. You can also check the error.log file for nginx to see what errors it gives on startup

    $ sudo cat /var/log/nginx/error.log

    “Welcome to nginx”

    During installation of BigBlueButton the packaging scripts attempt to assign the correct IP address during setup. However, if the IP address changes (such as when rebooting a VM), or the first IP address was not the correct IP address for the server, you may see a “Welcome to nginx” page.

    To reconfigure the BigBlueButton to use the correct IP address or hostname, see BigBlueButton does not load.

    bbb-web

    404 Error when loading the client

    BigBlueButton 2.2 requires Java 8 as the default Java. Recently, some Ubuntu 16.04 distributions have switched the default version of Java to Java 9 (or later).

    Use java -version to check that the default version of 1.8.0.

    ~/dev$ java -version
openjdk version "1.8.0_242"
OpenJDK Runtime Environment (build 1.8.0_242-8u242-b08-0ubuntu3~16.04-b08)
OpenJDK 64-Bit Server VM (build 25.242-b08, mixed mode)

    If not, do the following

    sudo apt-get install openjdk-8-jre
update-alternatives --config java  # Choose java-8 as default

    Run java -version and confirm it now shows the default as 1.8.0, and then restart BigBlueButton with sudo bbb-conf --restart

    Blank presentation area on create or upload

    If you join a meeting and the default presentation is not visible or your uploaded presentation doesn’t display, then this is most likely due to a permissions error. To solve this, ensure that /var/bigbluebutton/ is owned by bigbluebutton rather than root or any other account. See this issue for more explanation.

    Unable to create presentation

    If you see the following error in /var/log/bigbluebutton/bbb-web.log

      failed to map segment from shared object: Operation not permitted

    use the command mount to check that the /tmp director does not have noexec permissions (which would prevent executables from running in the /tmp directory). If you see noexec for /tmp, you need to remount the directory with permissions that enable processes (such as the slide conversion) to execute in the /tmp directory.

    Too many open files

    On servers with greater than 8 CPU cores, bbb-web log (/var/log/bigbluebutton/bbb-web.log) may throw an error of Too many open files

    Caused by: java.io.IOException: Too many open files

    To resolve, create an override file that increases the number of open files for bbb-web

    $  sudo mkdir -p /etc/systemd/system/bbb-web.service.d/
$  sudo cat > /etc/systemd/system/bbb-web.service.d/override.conf << HERE
[Service]
LimitNOFILE=
LimitNOFILE=8192
HERE
$  sudo systemctl daemon-reload

    bbb-web takes a long time to startup

    bbb-web relies on the SecureRandom class (which uses available entropy) to provide random values for its session IDs. On a virtualized server, however, the available entropy can run low and cause bbb-web to block for a long period before it finishes it’s startup sequence (see Slow startup of tomcat).

    To provide bbb-web with more entropy, you can install haveged

    $ sudo apt-get install haveged

    For more information see How to Setup Additional Entropy for Cloud Servers Using Haveged.

    Error installing bbb-web

    If you get the following error during upgrade to BigBlueButton

    Unpacking bbb-web (1:2.2.0-67) over (1:2.2.0-66) ...
dpkg: error processing archive /var/cache/apt/archives/bbb-web_1%3a2.2.0-67_amd64.deb (--unpack):
 trying to overwrite '/etc/bigbluebutton/nginx/web', which is also in package bbb-client 1:2.2.0-28
dpkg-deb: error: subprocess paste was killed by signal (Broken pipe)
Errors were encountered while processing:
 /var/cache/apt/archives/bbb-web_1%3a2.2.0-67_amd64.deb
E: Sub-process /usr/bin/dpkg returned an error code (1)```

    Then first uninstall bbb-client

    $ sudo apt-get purge bbb-client

    and try installing BigBlueButton again.

    Other errors

    Root partition too small

    If the root partition on your BigBlueButton server is too small (for disk space requirements see Before you install), we recommend moving the following directories to an external partition with sufficient disk space.

    BigBlueButton processing and storage of recordings:

    Location of all media directories on disk available here.

    To make the move, we’ll first stop BigBlueButton, then move the above directories to a new location on the external partition, create symbolic links from the original locations to the new locations, and restart BigBlueButton.

    In the following example, the external partition is mounted on /mnt.

    $ sudo bbb-conf --stop

$ sudo mv /var/freeswitch/meetings /mnt
$ sudo ln -s /mnt/recordings /var/freeswitch/meetings

$ sudo mv /usr/share/red5/webapps/video/streams /mnt
$ sudo ln -s /mnt/streams /usr/share/red5/webapps/video/streams

$ sudo /var/bigbluebutton /mnt
$ sudo ln -s /mnt/bigbluebutton /var/bigbluebutton

$ sudo bbb-conf --start

    BigBlueButton does not load

    If your has changed it’s network connection (such as on reboot), you can clean most of BigBlueButton’s configuration files with the following steps.

    $ sudo bbb-conf --setip <ip_address_or_hostname>

$ sudo bbb-conf --clean
$ sudo bbb-conf --check

    For more information see bbb-conf options.

    Running within an LXD Container

    LXD is a very powerful container system for Ubuntu lets you run full Ubuntu 16.04 servers within a container. Because you can easily clone and snapshot LXD containers, they are ideal for development and testing of BigBlueButton.

    However, if you install BigBlueButton within an LXD container, you will get the following error from sudo bbb-conf --check

    ** Potential problems described below **

#
# Error: Unable to connect to the FreeSWITCH Event Socket Layer on port 8021

    You’ll also get an error from starting FreeSWITCH with bbb-conf --restart. When you try systemctl status freeswitch.service, you’ll see an error with SETSCHEDULER.

    $ sudo systemctl status freeswitch.service
● freeswitch.service - freeswitch
   Loaded: loaded (/lib/systemd/system/freeswitch.service; enabled; vendor preset: enabled)
   Active: inactive (dead) (Result: exit-code) since Wed 2017-04-26 16:34:24 UTC; 23h ago
  Process: 7038 ExecStart=/opt/freeswitch/bin/freeswitch -u freeswitch -g daemon -ncwait $DAEMON_OPTS (code=exited, status=214/SETSCHEDULER)

Apr 26 16:34:24 big systemd[1]: Failed to start freeswitch.
Apr 26 16:34:24 big systemd[1]: freeswitch.service: Unit entered failed state.
Apr 26 16:34:24 big systemd[1]: freeswitch.service: Failed with result 'exit-code'.
Apr 26 16:34:24 big systemd[1]: freeswitch.service: Service hold-off time over, scheduling restart.
Apr 26 16:34:24 big systemd[1]: Stopped freeswitch.
Apr 26 16:34:24 big systemd[1]: freeswitch.service: Start request repeated too quickly.
Apr 26 16:34:24 big systemd[1]: Failed to start freeswitch.

    This error occurs because the default systemd unit script for FreeSWITCH tries to run with permissions not available to the LXD container. To run FreeSWITCH within an LXD container, edit /lib/systemd/system/freeswitch.service and replace with the following

    [Unit]
Description=freeswitch
After=syslog.target network.target local-fs.target

[Service]
Type=forking
PIDFile=/opt/freeswitch/var/run/freeswitch/freeswitch.pid
Environment="DAEMON_OPTS=-nonat"
EnvironmentFile=-/etc/default/freeswitch
ExecStart=/opt/freeswitch/bin/freeswitch -u freeswitch -g daemon -ncwait $DAEMON_OPTS
TimeoutSec=45s
Restart=always
WorkingDirectory=/opt/freeswitch
User=freeswitch
Group=daemon

[Install]
WantedBy=multi-user.target

    Then enter the following commands to load the new unit file and restart BigBlueButton.

    $ sudo systemctl daemon-reload
$ sudo bbb-conf --restart

    You can run BigBlueButton within a LXD container.

    Unable to connect to redis

    The packages bbb-apps-akka, bbb-fsesl-akka, and bbb-transcode-akka are packaged by sbt, but they need to have redis-server running before they startup. If sudo bbb-conf --debug shows redis connection errors

    Sep 22 15:32:12 sv21 bbb-apps-akka[7804]: Exception in thread "main" io.lettuce.core.RedisConnectionException: Unable to connect to 127.0.0.1:6379
Sep 22 15:32:12 sv21 bbb-apps-akka[7804]: #011at io.lettuce.core.RedisConnectionException.create(RedisConnectionException.java:78)
Sep 22 15:32:12 sv21 bbb-apps-akka[7804]: #011at io.lettuce.core.RedisConnectionException.create(RedisConnectionException.java:56)
Sep 22 15:32:12 sv21 bbb-apps-akka[7804]: Caused by: io.netty.channel.AbstractChannel$AnnotatedConnectException: Connection refused: /127.0.0.1:6379
Sep 22 15:32:12 sv21 bbb-apps-akka[7804]: Caused by: java.net.ConnectException: Connection refused
Sep 22 15:32:12 sv21 bbb-fsesl-akka[7893]: Exception in thread "main" io.lettuce.core.RedisConnectionException: Unable to connect to 127.0.0.1:6379
Sep 22 15:32:12 sv21 bbb-fsesl-akka[7893]: #011at io.lettuce.core.RedisConnectionException.create(RedisConnectionException.java:78)
Sep 22 15:32:12 sv21 bbb-fsesl-akka[7893]: #011at io.lettuce.core.RedisConnectionException.create(RedisConnectionException.java:56)
Sep 22 15:32:12 sv21 bbb-fsesl-akka[7893]: Caused by: io.netty.channel.AbstractChannel$AnnotatedConnectException: Connection refused: /127.0.0.1:6379
Sep 22 15:32:12 sv21 bbb-fsesl-akka[7893]: Caused by: java.net.ConnectException: Connection refused
Sep 22 15:32:13 sv21 bbb-transcode-akka[8001]: Exception in thread "main" io.lettuce.core.RedisConnectionException: Unable to connect to 127.0.0.1:6379
Sep 22 15:32:13 sv21 bbb-transcode-akka[8001]: #011at io.lettuce.core.RedisConnectionException.create(RedisConnectionException.java:78)
Sep 22 15:32:13 sv21 bbb-transcode-akka[8001]: #011at io.lettuce.core.RedisConnectionException.create(RedisConnectionException.java:56)
Sep 22 15:32:13 sv21 bbb-transcode-akka[8001]: Caused by: io.netty.channel.AbstractChannel$AnnotatedConnectException: Connection refused: /127.0.0.1:6379
Sep 22 15:32:13 sv21 bbb-transcode-akka[8001]: Caused by: java.net.ConnectException: Connection refused

    you can add overrides for these three packages to ensure they start after redis.server. Run the following script.

    #!/bin/bash

mkdir -p /etc/systemd/system/bbb-apps-akka.service.d
cat > /etc/systemd/system/bbb-apps-akka.service.d/override.conf <<HERE
[Unit]
Requires=redis-server.service
After=redis-server.service
HERE

mkdir -p /etc/systemd/system/bbb-fsesl-akka.service.d
cat > /etc/systemd/system/bbb-fsesl-akka.service.d/override.conf <<HERE
[Unit]
Requires=redis-server.service
After=redis-server.service
HERE


mkdir -p /etc/systemd/system/bbb-transcode-akka.service.d
cat > /etc/systemd/system/bbb-transcode-akka.service.d/override.conf <<HERE
[Unit]
Requires=redis-server.service
After=redis-server.service
HERE

    The script bbb-install now creates these overrides by default.

    500 Internal Server Error

    It is most likely an error on GreenLight. Check the log file according to Troubleshooting Greenlight.

    If this error occurrs on just a small number of PCs accessing a BigBlueButton server within a LAN through a proxy server and you find the description “Error::Unsafe Host Error (x.x.x.x is not a safe host)” (where x.x.x.x is an IP address) in the log file, check if the “Don’t use the proxy server for local (intranet) addresses” (in the Windows proxy setting) is ticked.

    Legacy errors

    Conference not found errors

    The command sudo bbb-conf --debug searches through the red5, tomcat7, and nginx logs looking for errors and exceptions. However, the messages such as

        -- ERRORS found in /usr/share/red5/log/* --
/usr/share/red5/log/bigbluebutton.log:2015-05-02 13:50:37,681-04:00 [pool-17-thread-1] ERROR o.b.w.v.f.a.PopulateRoomCommand - Not XML: [Conference 78505 not found]

    are innocuous and can be ignored.

    Содержание

    1. Error 1007 ICE. Failed joining audio conf. #8418
    2. Comments
    3. ikaikai commented Dec 12, 2019 •
    4. Bigbluebutton не работает микрофон 1007
    5. Introduction
    6. Recording
    7. Recording not processing after upgrading
    8. Kurento
    9. WebRTC video not working with Kurento
    10. Unit kurento-media-server.service is masked
    11. Unable to share webcam
    12. FreeSWITCH
    13. Configure BigBluebutton/FreeSWITCH to support IPV6
    14. FreeSWITCH fails to bind to IPV4
    15. Forward calls from an Asterisk server to FreeSWITCH
    16. Changes to your Asterisk server
    17. Changes to your BigBlueButton/FreeSWITCH server
    18. FreeSWITCH fails to bind to port 8021
    19. FreeSWITCH fails to start with a SETSCHEDULER error
    20. Users not able to join Listen Only mode
    21. Unable to connect using fs_cli
    22. Echo test hangs upgrading BigBlueButton 2.2
    23. FreeSWITCH using default stun server
    24. HTML5 Server
    25. bbb-html5 fails to start with a SETSCHEDULER error
    26. Installation and packages
    27. The following packages have unmet dependencies
    28. No Symbolic Link
    29. Package install fails with sed error
    30. Errors with packages
    31. WebRTC errors (1001, 1002,…)
    32. Networking
    33. Server running behind NAT
    34. Could not get your microphone for a WebRTC call
    35. The browser is not supported
    36. Tomcat shows “Cannot assign requested address on startup”
    37. nginx not running
    38. “Welcome to nginx”
    39. bbb-web
    40. 404 Error when loading the client
    41. Blank presentation area on create or upload
    42. Unable to create presentation
    43. Too many open files
    44. bbb-web takes a long time to startup
    45. Error installing bbb-web
    46. Other errors
    47. Root partition too small
    48. BigBlueButton does not load
    49. Running within an LXD Container
    50. Unable to connect to redis
    51. 500 Internal Server Error
    52. Legacy errors
    53. Conference not found errors

    Error 1007 ICE. Failed joining audio conf. #8418

    [11:41:24:0464] INFO: clientLogger: Audio call session accepted InviteClientContext.p (https://class.demos.cloud/html5client/23acf17a7f66feccb643e681b6de9fd0361d4c3a.js?meteor_js_resource=true:125:1167498)
    sip.js?v=815:1272 SIP.EventEmitter#off is deprecated and may be removed in future SIP.js versions.
    Please use removeListener or removeAllListeners instead.
    See here for more details:
    http://nodejs.org/api/events.html#events_emitter_removelistener_event_listener
    off @ sip.js?v=815:1272
    p @ 23acf17a7f66feccb643e681b6de9fd0361d4c3a.js?meteor_js_resource=true:125
    EventEmitter.emit @ sip.js?v=815:115
    accepted @ sip.js?v=815:5641
    onSuccess @ sip.js?v=815:6854
    (anonymous) @ 23acf17a7f66feccb643e681b6de9fd0361d4c3a.js?meteor_js_resource=true:1
    Promise.then (async)
    n.then @ 23acf17a7f66feccb643e681b6de9fd0361d4c3a.js?meteor_js_resource=true:21
    receiveInviteResponse @ sip.js?v=815:6835
    receiveResponse @ sip.js?v=815:3784
    InviteClientTransaction.receiveResponse @ sip.js?v=815:7835
    onMessage @ sip.js?v=815:8569
    ws.onmessage @ sip.js?v=815:8427
    sip.js?v=815:2900 Thu Dec 12 2019 11:41:29 GMT+0800 (中国标准时间) | sip.invitecontext.mediahandler | RTCIceChecking Timeout Triggered after 5000 milliseconds
    23acf17a7f66feccb643e681b6de9fd0361d4c3a.js?meteor_js_resource=true:9 [11:41:39:0496] ERROR: clientLogger: ICE connection failed before success MediaHandler.g (https://class.demos.cloud/html5client/23acf17a7f66feccb643e681b6de9fd0361d4c3a.js?meteor_js_resource=true:125:1168708)
    sip.js?v=815:1272 SIP.EventEmitter#off is deprecated and may be removed in future SIP.js versions.
    Please use removeListener or removeAllListeners instead.
    See here for more details:
    http://nodejs.org/api/events.html#events_emitter_removelistener_event_listener
    off @ sip.js?v=815:1272
    (anonymous) @ 23acf17a7f66feccb643e681b6de9fd0361d4c3a.js?meteor_js_resource=true:125
    g @ 23acf17a7f66feccb643e681b6de9fd0361d4c3a.js?meteor_js_resource=true:125
    EventEmitter.emit @ sip.js?v=815:112
    peerConnection.oniceconnectionstatechange @ sip.js?v=815:11580
    sip.js?v=815:1272 SIP.EventEmitter#off is deprecated and may be removed in future SIP.js versions.
    Please use removeListener or removeAllListeners instead.
    See here for more details:
    http://nodejs.org/api/events.html#events_emitter_removelistener_event_listener
    off @ sip.js?v=815:1272
    (anonymous) @ 23acf17a7f66feccb643e681b6de9fd0361d4c3a.js?meteor_js_resource=true:125
    (anonymous) @ 23acf17a7f66feccb643e681b6de9fd0361d4c3a.js?meteor_js_resource=true:125
    exitAudio @ 23acf17a7f66feccb643e681b6de9fd0361d4c3a.js?meteor_js_resource=true:125
    d @ 23acf17a7f66feccb643e681b6de9fd0361d4c3a.js?meteor_js_resource=true:125
    l @ 23acf17a7f66feccb643e681b6de9fd0361d4c3a.js?meteor_js_resource=true:125
    g @ 23acf17a7f66feccb643e681b6de9fd0361d4c3a.js?meteor_js_resource=true:125
    EventEmitter.emit @ sip.js?v=815:112
    peerConnection.oniceconnectionstatechange @ sip.js?v=815:11580
    sip.js?v=815:2900 Thu Dec 12 2019 11:41:39 GMT+0800 (中国标准时间) | sip.inviteclientcontext | terminating Session
    sip.js?v=815:2900 Thu Dec 12 2019 11:41:39 GMT+0800 (中国标准时间) | sip.transport | sending WebSocket message:

    BYE sip:919667998@44.228.244.151:5060;transport=udp SIP/2.0
    Via: SIP/2.0/WSS 33jndlprjgjs.invalid;branch=z9hG4bK5167729
    Max-Forwards: 70
    To: sip:919667998@class.demos.cloud;tag=75vDUmHFpe78F
    From: «w_5sia44tmkbqy_9-bbbID-Tiankai» sip:w_5sia44tmkbqy_9-bbbID-Tiankai@class.demos.cloud;tag=86ejcjj0gc
    Call-ID: 6084n2qs56sqd3loqlrh
    CSeq: 5768 BYE
    Supported: outbound
    User-Agent: BigBlueButton
    Content-Length: 0

    sip.js?v=815:2900 Thu Dec 12 2019 11:41:39 GMT+0800 (中国标准时间) | sip.inviteclientcontext | closing INVITE session 6084n2qs56sqd3loqlrhs31fkqc5q2
    sip.js?v=815:2900 Thu Dec 12 2019 11:41:39 GMT+0800 (中国标准时间) | sip.invitecontext.mediahandler | closing PeerConnection

    The text was updated successfully, but these errors were encountered:

    Источник

    Bigbluebutton не работает микрофон 1007

    If you encountered any problems with the installation of BigBlueButton, this section covers how to resolve many of the common issues.

    If you have not already done so, read through the getting help section.

    Introduction

    Start here: run sudo bbb-conf —check

    We’ve built in a BigBlueButton configuration utility, called bbb-conf , to help you configure your BigBlueButton server and troubleshoot your setup if something doesn’t work right.

    If you think something isn’t working correctly, the first step is enter the following command.

    This will check your setup to ensure the correct processes are running, the BigBlueButton components have correctly started, and look for common configuration problems that might prevent BigBlueButton from working properly.

    If you see text after the line ** Potential problems described below ** , then it may be warnings (which you can ignore if you’ve change settings) or errors with the setup.

    Recording

    Recording not processing after upgrading

    If after updating from BigBlueButton 2.0 to BigBlueButton 2.2 your recordings are not processing, and if you are seeing Permission denied errors in /var/log/bigbluebutton/bbb-rap-worker.log

    You can resolve the errors with the following command

    and then rebuild the recordings that had not yet processed. You can see the list of recordings with

    and then to rebuild a recording, use sudo bbb-record —rebuild , as in

    Kurento

    WebRTC video not working with Kurento

    Check the value for /proc/sys/net/ipv4/tcp_syncookies that it contains the value 1 .

    If not, edit /etc/sysctl.conf and set the value for net.ipv4.tcp_syncookies to 1 .

    Save the file and restart.

    Unit kurento-media-server.service is masked

    If sudo bbb-conf —check returns the warning

    You can unmask Kurento using the command

    The default installation of BigBlueButton should work in most netowrk configurations; however, if your users ae behind a restrictive network that blocks outgoing UDP connections, they may encounter 1020 errors (media unable to reach server).

    If you get reports of these errors, setup TURN server to help their browsers send WebRTC audio and video streams via TCP over port 443 to the TURN server. The TURN server will then relay the media to your BigBlueButton server.

    FreeSWITCH

    Configure BigBluebutton/FreeSWITCH to support IPV6

    The HTML5 client now enables users on mobile devices to connect to a BigBlueButton server. However, on some cellular networks iOS devices only receive an IPV6 address.

    To enable BigBlueButton (FreeSWITCH) to accept incoming web socket connections on IPV6, the BigBlueButton server must have an IPV6 address. You also need to make the following changes to the server.

    First, create the file /etc/nginx/conf.d/bigbluebutton_sip_addr_map.conf with this content:

    replacing the ip addresses 192.0.2.1 with the system’s external IPV4 addresses, and replace 2001:db8::1 with the system’s external IPV6 address. Next, edit the file /etc/bigbluebutton/nginx/sip.nginx to have the following:

    Next, ensure all of the following params are present in freeswitch’s sip_profiles/external-ipv6.xml :

    • ws-binding
    • wss-binding
    • rtcp-audio-interval-msec
    • rtcp-video-interval-msec
    • dtmf-type
    • liberal-dtmf
    • enable-3pcc

    If any are missing, copy them from sip_profiles/external.xml , then restart BigBlueButton ( sudo bbb-conf —restart ).

    FreeSWITCH fails to bind to IPV4

    In rare occasions after shutdown/restart, the FreeSWITCH database can get corrupted. This will cause FreeSWITCH to have problems binding to IPV4 address (you may see error 1006 when users try to connect).

    To check, look in /opt/freeswitch/var/log/freeswitch/freeswitch.log for errors related to loading the database.

    If you see these errors, clear the FreeSWITCH database (BigBlueButton doesn’t use the database and FreeSWITCH will recreate it on startup).

    Forward calls from an Asterisk server to FreeSWITCH

    Let’s assume the following:

    Changes to your Asterisk server

    Setup your gateway to BigBlueButton/FreeSWITCH. in /etc/asterisk/sip.conf add

    Route the calls to the gateway. In /etc/asterisk/extensions.conf context where your calls are being handled, forward the calls to the gateway. Here, when someone dials 85001, the call is sent to the fs-gw defined above.

    Changes to your BigBlueButton/FreeSWITCH server

    In BigBlueButton/FreeSWITCH, make the following changes:

    Lock down so that only Asterisk can forward calls to FreeSWITCH. In /opt/freeswitch/conf/autoload_configs/acl.conf.xml , add the following ACL. We also need to allow BigBlueButton to call into FreeSWITCH, that’s why we add the IP of BigBlueButton/FreeSWITCH into the ACL.

    Then we apply the ACL into the profile that receives the calls from external gateways. In /opt/freeswitch/conf/sip_profiles/external.xml , add the ACL under

    To debug, try connecting to FS CLI and increase logging level. Once connected, make your call and see what the logs say.

    FreeSWITCH fails to bind to port 8021

    FreeSWITCH supports both IPV4 and IPV6. However, if your server does not support IPV6, FreeSWITCH will be unable to bind to port 8021. If you run sudo bbb-conf —check and see the following error

    it might be that your server has IPV6 disabled (or does not support it). You can check this by running the following command

    If you do not see the line inet6 ::1/128 scope host , then your server has IPV6 disabled. In this case, we need to disable FreeSWITCH’s support for IPV6. First, edit /opt/freeswitch/etc/freeswitch/autoload_configs/event_socket.conf.xml and change the line

    This tells FreeSWITCH that instead of binding port 8021 to the local IPV6 address, bind to the IPV4 address 127.0.0.1. Next, execute the following two commands

    and then restart BigBlueButton with the commands

    FreeSWITCH fails to start with a SETSCHEDULER error

    When running in a container (like a chroot, OpenVZ or LXC), it might not be possible for FreeSWITCH to set its CPU priority to real-time round robin. If not, it will result in lower performance compared to a non-virtualized installation.

    If you running BigBlueButton in a container and an error starting FreeSWITCH, try running systemctl status freeswitch.service and see if you see the error related to SETSCHEDULER

    If you see SETSCHEDULER in the error message, edit /lib/systemd/system/freeswitch.service and comment out the line containing CPUSchedulingPolicy=rr (round robin)

    Save the file, run systemctl daemon-reload , and then restart BigBlueButton. FreeSWITCH should now startup without error.

    Users not able to join Listen Only mode

    When doing sudo bbb-conf —check , you may see the warning

    This error occurs when bbb-apps-sip isn’t able to make a SIP call to FreeSWITCH. You’ll see this in BigBlueButton when users click the headset icon and don’t join the voice conference.

    One possible cause for this is you have just installed BigBlueButton, but not restarted it. The packages do not start up the BigBlueButton components in the right order. To restart BigBlueButton, do the following:

    If you don’t want FreeSWITCH to bind to 127.0.0.1, you need to figure out which IP address its using. First, determine the IP address FreeSWITCH is monitoring for incoming SIP calls with the following command:

    You should see an output such as

    In this example, FreeSWITCH is listening on IP address 234.147.116.3. The IP address on your server will be different.

    Next, edit /usr/share/red5/webapps/sip/WEB-INF/bigbluebutton-sip.properties and set the value for sip.server.host to the IP address returned from the above command. Save the changes (you’ll need to edit the file as root to save changes).

    Restart BigBlueButton using the commands and run the built-in diagnostics checks.

    Unable to connect using fs_cli

    As of BigBlueButton 2.2.18, the packaging now replaces the default ClueCon password for connecting to the FreeSWITCH command line interface ( fs_cli ) with a random password.

    (By default, FreeSWITCH only allowed unauthenticated connections from 127.0.0.1, but it’s still good security practice to not use default passwords).

    To connect to fs_cli , use the following command which supplies the password for authenticating.

    We also added /usr/local/bin/fs_clibbb with the contents

    that will let you type fs_clibbb at the command prompt to get into FreeSWITCH console.

    Echo test hangs upgrading BigBlueButton 2.2

    The install scripts now change the default CLI password for FreeSWITCH and the other parts of BigBlueButton need to use this new password. For a new installation, the install scripts will automatically set this new password.

    If you upgrade using bbb-install.sh, the script will update the FreeSWITCH password using sudo bbb-conf —setip .

    If you upgraded using manual steps, be sure to do ao sudo bbb-conf —setip to sync all the FreeSWITCH passwords.

    FreeSWITCH using default stun server

    For many years, in BigBlueButton’s FreeSWITCH configuration file /opt/freeswitch/etc/freeswitch/vars.xml , the default value for external_rtp_ip was stun.freeswitch.org

    However, this is not a reliable choice for stun server. Recommend either changing it to your servers external IP address or setup your own stun/turn server. For example, if your server has an external IP at 234.32.3.3

    You can add a line in /etc/bigbluebutton/bbb-conf/apply-conf.sh to always apply this value even if the FreeSWITCH package upgrades.

    Note: If your server has an internal/exteral IP address, such as on AWS EC2 server, be sure to set it to the external IP address configure a dummy network interface card (see Update FreeSWITCH).

    HTML5 Server

    bbb-html5 fails to start with a SETSCHEDULER error

    As of 2.2.31, the systemd unit file for bbb-html5.service now contains the following lines

    You can override this with creating the following directory

    and creating /etc/systemd/system/bbb-html5.service.d/override.conf with the following contents

    Then do systemctl daemon-reload and restart BigBlueButton.

    Installation and packages

    The following packages have unmet dependencies

    When installing the latest build of BigBlueButton, the package bbb-conf now uses yq to manage YAML files.

    You need to add the repository ppa:rmescandon/yq to your server. For steps on how to do this, see Update your server in the BigBlueButton 2.2 install guide.

    Alternatively, if you have not made any customizations to BigBlueButton (outside of using bbb-conf ), you can use bbb-install.sh to install/upgrade to the latest version (the bbb-install.sh script will automatically install the repository for yq ).

    No Symbolic Link

    If you’ve installed/uninstalled BigBlueButton packages, you may get a No Symbolic Link warning from bbb-conf —check :

    To solve this, add a symbolic link to nginx for the BigBlueButton site:

    Package install fails with sed error

    Some of the BigBlueButton packages use sed scripts to extract contents from configuration files. If the file does not exist at the time of the script’s execution, or the sed script matches multiple entries in a file (such as when a configuration line is commented out), you can see an error such as

    In the above example, the /var/lib/dpkg/info/bbb-client.postinst failed to finish. To debug, edit this file and change the first line to read

    You should now see each command in bbb-conf.postinst as it executes upto the line in which the error occurs. Post this output to https://groups.google.com/forum/#!forum/bigbluebutton-setup for help in resolving the issue.

    Errors with packages

    Some hosting providers do not provide a complete /etc/apt/source.list . If you are finding your are unable to install a package, try replacing your /etc/apt/sources.list with the following

    and try installing BigBlueButton again from the beginning.

    WebRTC errors (1001, 1002,…)

    WebRTC offers very high-quality audio. However, the user’s network settings (or firewall) may not allow WebRTC to connect (or keep connected).

    Here are the following lists the possible WebRTC error messages that a user may encounter:

    • 1001: WebSocket disconnected — The WebSocket had connected successfully and has now disconnected. Possible Causes:
      • Loss of internet connection
      • Nginx restarting can cause this
    • 1002: Could not make a WebSocket connection — The initial WebSocket connection was unsuccessful. Possible Causes:
      • Firewall blocking ws protocol
      • Server is down or improperly configured
      • See potential solution here.
    • 1003: Browser version not supported — Browser doesn’t implement the necessary WebRTC API methods. Possible Causes:
      • Out of date browser
    • 1004: Failure on call — The call was attempted, but failed. Possible Causes:
      • For a full list of causes refer here
      • There are 24 different causes so I don’t really want to list all of them
      • Solution for this issue outlined here.
    • 1005: Call ended unexpectedly — The call was successful, but ended without user requesting to end the session. Possible Causes:
      • Unknown
    • 1006: Call timed out — The library took too long to try and connect the call. Possible Causes:
      • Previously caused by Firefox 33-beta on Mac. We’ve been unable to reproduce since release of FireFox 34
    • 1007: ICE negotiation failed — The browser and FreeSWITCH try to negotiate ports to use to stream the media and that negotiation failed. Possible Causes:
      • NAT is blocking the connection
      • Firewall is blocking the UDP connection/ports
    • 1008: Call transfer failed — A timeout while waiting for FreeSWITCH to transfer from the echo test to the real conference. This might be caused by a misconfiguration in FreeSWITCH, or there might be a media error and the DTMF command to transfer didn’t go through (In this case, the voice in the echo test probably didn’t work either.)
    • 1009: Could not fetch STUN/TURN server information — This indicates either a BigBlueButton bug (or you’re using an unsupported new client/old server combination), but could also happen due to a network interruption.
    • 1010: ICE negotiation timeout — After the call is accepted the client’s browser and the server try and negotiate a path for the audio data. In some network setups this negotiation takes an abnormally long time to fail and this timeout is set to avoid the client getting stuck.
    • 1020: Media cloud could not reach the server — See how to solve this here.

    Networking

    Server running behind NAT

    The following issue might be helpful in debugging if you run into errors and your server is behind NAT.

    Could not get your microphone for a WebRTC call

    Chrome requires (As of Chrome 47) that to access the user’s microphone for WebRTC your site must be serving pages via HTTPS (that is, nginx is configured with a SSL certificate).

    If the user attempts to share their microphone and your BigBlueButton sever is not configured for SSL, Chrome will block access and BigBlueButton will report the following error

    WebRTC Audio Failure: Detected the following WebRTC issue: Could not get your microphone for a WebRTC call. Do you want to try flash instead?

    To enable Chrome to access the user’s microphone, see Configure HTTPS on BigBlueButton.

    The browser is not supported

    When you attempt to join a BigBlueButton session, the client looks for supported browsers before fully loading. The client gets its list of supported browsers from /usr/share/meteor/bundle/programs/server/assets/app/config/settings.yml . You can see the list of supported browsers at the bottom. For example,

    states that Mobile Safari version 11.1 or later is supported (notice the first letter is lower case and concatenated with the remainder of the browser name).

    To add a browser to the list, first open the following page https://test.bigbluebutton.org/html5client/useragent with the browser, which will print its useragent string. For example, with the Vivaldi browser you might see

    Next, to add this as a supported browser, append to settings.yml

    save the updated settings.yml file, and then restart your BigBlueButton server with sudo bbb-conf —restart . Note any browser you add must support WebRTC libraries (not all do), so be sure to check it first with https://test.webrtc.org/.

    Tomcat shows “Cannot assign requested address on startup”

    If your server has multiple IP addresses, Tomcat might not pick the right address to bind. This could throw an error on installation when tomcat is attempting to install.

    Check /var/log/tomcat7/catalina.out for the following error

    If you see this, first ensure that there isn’t another copy of tomcat running by doing ps -aef | grep tomcat7 . If you do see another copy running, try killing it and then restarting tomcat.

    If you still see the same error in catalina.out , then /etc/tomcat7/server.xml and change

    Restart tomcat7 again and it should start normally.

    nginx not running

    The common reasons for nginx not running are inability to bind to port 80 and configuration errors. To check if port 80 is already in use, use

    to see if any process is currently bound to port 80. If so, check to see if another web server is installed. If so, then stop the web server and try to restart nginx. One of the server requirements before you install BigBlueButton is that port 80 is not in use by another application (such as Apache). For details on why this is a requirements, see We recommend running BigBlueButton on port 80.

    If port 80 is free, check if your nginx configuration file has errors. Try a restart of nginx

    and look for the output of

    If you see [ Fail ] , then your nginx configuration files might have a syntax error. Check the syntax of the nginx configuration files using the command

    and see if it reports any errors. You can also check the error.log file for nginx to see what errors it gives on startup

    “Welcome to nginx”

    During installation of BigBlueButton the packaging scripts attempt to assign the correct IP address during setup. However, if the IP address changes (such as when rebooting a VM), or the first IP address was not the correct IP address for the server, you may see a “Welcome to nginx” page.

    To reconfigure the BigBlueButton to use the correct IP address or hostname, see BigBlueButton does not load.

    bbb-web

    404 Error when loading the client

    BigBlueButton 2.2 requires Java 8 as the default Java. Recently, some Ubuntu 16.04 distributions have switched the default version of Java to Java 9 (or later).

    Use java -version to check that the default version of 1.8.0 .

    If not, do the following

    Run java -version and confirm it now shows the default as 1.8.0 , and then restart BigBlueButton with sudo bbb-conf —restart

    Blank presentation area on create or upload

    If you join a meeting and the default presentation is not visible or your uploaded presentation doesn’t display, then this is most likely due to a permissions error. To solve this, ensure that /var/bigbluebutton/ is owned by bigbluebutton rather than root or any other account. See this issue for more explanation.

    Unable to create presentation

    If you see the following error in /var/log/bigbluebutton/bbb-web.log

    use the command mount to check that the /tmp director does not have noexec permissions (which would prevent executables from running in the /tmp directory). If you see noexec for /tmp , you need to remount the directory with permissions that enable processes (such as the slide conversion) to execute in the /tmp directory.

    Too many open files

    On servers with greater than 8 CPU cores, bbb-web log ( /var/log/bigbluebutton/bbb-web.log ) may throw an error of Too many open files

    To resolve, create an override file that increases the number of open files for bbb-web

    bbb-web takes a long time to startup

    bbb-web relies on the SecureRandom class (which uses available entropy) to provide random values for its session IDs. On a virtualized server, however, the available entropy can run low and cause bbb-web to block for a long period before it finishes it’s startup sequence (see Slow startup of tomcat).

    To provide bbb-web with more entropy, you can install haveged

    Error installing bbb-web

    If you get the following error during upgrade to BigBlueButton

    Then first uninstall bbb-client

    and try installing BigBlueButton again.

    Other errors

    Root partition too small

    If the root partition on your BigBlueButton server is too small (for disk space requirements see Before you install), we recommend moving the following directories to an external partition with sufficient disk space.

    BigBlueButton processing and storage of recordings:

    Location of all media directories on disk available here.

    To make the move, we’ll first stop BigBlueButton, then move the above directories to a new location on the external partition, create symbolic links from the original locations to the new locations, and restart BigBlueButton.

    In the following example, the external partition is mounted on /mnt .

    BigBlueButton does not load

    If your has changed it’s network connection (such as on reboot), you can clean most of BigBlueButton’s configuration files with the following steps.

    For more information see bbb-conf options.

    Running within an LXD Container

    LXD is a very powerful container system for Ubuntu lets you run full Ubuntu 16.04 servers within a container. Because you can easily clone and snapshot LXD containers, they are ideal for development and testing of BigBlueButton.

    However, if you install BigBlueButton within an LXD container, you will get the following error from sudo bbb-conf —check

    You’ll also get an error from starting FreeSWITCH with bbb-conf —restart . When you try systemctl status freeswitch.service , you’ll see an error with SETSCHEDULER.

    This error occurs because the default systemd unit script for FreeSWITCH tries to run with permissions not available to the LXD container. To run FreeSWITCH within an LXD container, edit /lib/systemd/system/freeswitch.service and replace with the following

    Then enter the following commands to load the new unit file and restart BigBlueButton.

    You can run BigBlueButton within a LXD container.

    Unable to connect to redis

    The packages bbb-apps-akka , bbb-fsesl-akka , and bbb-transcode-akka are packaged by sbt, but they need to have redis-server running before they startup. If sudo bbb-conf —debug shows redis connection errors

    you can add overrides for these three packages to ensure they start after redis.server. Run the following script.

    The script bbb-install now creates these overrides by default.

    500 Internal Server Error

    It is most likely an error on GreenLight. Check the log file according to Troubleshooting Greenlight.

    If this error occurrs on just a small number of PCs accessing a BigBlueButton server within a LAN through a proxy server and you find the description “Error::Unsafe Host Error (x.x.x.x is not a safe host)” (where x.x.x.x is an IP address) in the log file, check if the “Don’t use the proxy server for local (intranet) addresses” (in the Windows proxy setting) is ticked.

    Legacy errors

    Conference not found errors

    The command sudo bbb-conf —debug searches through the red5, tomcat7, and nginx logs looking for errors and exceptions. However, the messages such as

    Источник

      If you encountered any problems with the installation of BigBlueButton, this section covers how to resolve many of the common issues.

      If you have not already done so, read through the getting help section.

      Introduction

      Start here: run sudo bbb-conf --check

      We’ve built in a BigBlueButton configuration utility, called bbb-conf, to help you configure your BigBlueButton server and troubleshoot your setup if something doesn’t work right.

      If you think something isn’t working correctly, the first step is enter the following command.

      This will check your setup to ensure the correct processes are running, the BigBlueButton components have correctly started, and look for common configuration problems that might prevent BigBlueButton from working properly.

      If you see text after the line ** Potential problems described below **, then it may be warnings (which you can ignore if you’ve change settings) or errors with the setup.

      Recording

      Recording not processing after upgrading

      If after updating from BigBlueButton 2.0 to BigBlueButton 2.2 your recordings are not processing, and if you are seeing Permission denied errors in /var/log/bigbluebutton/bbb-rap-worker.log

      I, [2019-06-07T14:26:09.034878 #14808]  INFO -- : /usr/lib/ruby/2.5.0/logger.rb:754:in `initialize': Permission denied @ rb_sysopen - /var/log/bigbluebutton/presentation/process-02feca80700b3e95b877af85db972904397857a1-1559909318977.log (Errno::EACCES)

      You can resolve the errors with the following command

      $ sudo chown -hR bigbluebutton:bigbluebutton /var/log/bigbluebutton/presentation /var/log/bigbluebutton/screenshare

      and then rebuild the recordings that had not yet processed. You can see the list of recordings with

      and then to rebuild a recording, use sudo bbb-record --rebuild <internal_meeting_id>, as in

      $ sudo bbb-record --rebuild 298b06603719217df51c5d030b6e9417cc036476-1559314745219

      Webcams/screen sharing aren’t working

      Certify that appropriate external addresses have been set for mediasoup. When installed via packages, mediasoup IPs are normally misconfigured. If installed via bbb-install, then IPv4 is generally correct, but IPv6 might be absent.

      Nonetheless, we recommend double-checking the instructions in Updating mediasoup.

      Configure mediasoup to use IPv6

      mediasoup (bbb-webrtc-sfu) does not come with a IPv6 enabled by default when installed either via packages or bbb-install.

      To configure IPv6, bbb-webrtc-sfu’s override configuration file (located in /etc/bigbluebutton/bbb-webrtc-sfu/production.yml) should be used.

      See Updating mediasoup for instructions and examples on how to do so.

      I’m having troubles seeing webcams or screen sharing in Firefox

      That’s usually the symptom of a known Firefox issue where it doesn’t comply with ICE-lite implementations (and mediasoup is one).

      This issue can be worked around by forcing TURN usage in Firefox user agents. To achieve that, set the public.kurento.forceRelayOnFirefox configuration to true in /etc/bigbluebutton/bbb-html5.yml. For example:

      public:
  kurento:
    forceRelayOnFirefox: true

      How often does this Firefox issue happens?

      Short (non) answer: that’s difficult to measure.

      Every Firefox installation is prone to the lack of ICE-lite spec compliance. However, the issue doesn’t manifest itself on all Firefox installations as it is dependent on how the end user’s network topology is organized. It’s generally a small subset of Firefox users, but that can vary depending on the user base.

      Where can I track progress on a definitive solution or better workaround?

      This is a Firefox bug, so the best place to get an overview on progress and what the issue is about is Mozilla’s issue.

      You can also track BigBlueButton’s issue for updates on additional workarounds.

      Why isn’t forceRelayOnFirefox enabled by default?

      It’s not on by default because bigbluebutton does not come with a TURN server by default, and that’s what versioned-in-code setting presumes.

      How do I know if mediasoup is being used?

      The most direct and precise way to figure out whether mediasoup is being used is checking about:webrtc (Firefox) or chrome://webrtc-internals. For example: open one of those, share a camera. Look for the remote description (SDP); see if it contains mediasoup-client in the SDP header. If it does, you’re using mediasoup.

      Regardless of that: mediasoup is the default in 2.5 and should always be used unless default settings were explicitly changed.

      mediasoup is the default in 2.5. Why is Kurento still around?

      Because Kurento is still used for stream recording. It should be removed as a dependency as soon as this issue is addressed.

      Is single-core performance still important with mediasoup?

      Yes.

      How can I control the number of mediasoup workers?

      To control the number of mediasoup workers, bbb-webrtc-sfu’s override configuration file (located in /etc/bigbluebutton/bbb-webrtc-sfu/production.yml) should be used.

      There are a couple of configurations of interest here:

      mediasoup.workers

      This configuration controls the number of mediasoup workers intended for general use (media type agnostic, shared pool).

      Accepted values are:

      • "auto" (default): creates ceil((min(nproc,32) * 0.8) + (max(0, nproc - 32) / 2)) workers;
      • "cores": creates workers up to the host’s core count (as provided by os.cpus().length);
      • <Number>: overrides the number of workers with a fixed value;
      • The default and fallback values are auto.

      For example:

      • To set the number of workers to cores: yq w -i /etc/bigbluebutton/bbb-webrtc-sfu/production.yml mediasoup.workers "cores"

      mediasoup.dedicatedMediaTypeWorkers

      This configuration controls the number of mediasoup workers to be used by specific media types.
      If a dedicated pool is set, streams of its media type will always land on it. Otherwise, they will use the shared pool.

      The configuration is an object of the following format:

      mediasoup.dedicatedMediaTypeWorkers:
   audio: "auto"|"cores"|<Number>
   main: "auto"|"cores"|<Number>
   content: "auto"|"cores"|<Number>

      The semantics of auto, cores and Number are the same as in the mediasoup.workers configuration. Default values for all media types are 0 (no dedicated workers).

      The media types semantics are:

      • audio: audio (listen only, microphone) streams;
      • main: webcam video streams;
      • content: screen sharing streams (audio and video).

      For example:

      • To set the number of dedicated audio workers to auto: yq w -i /etc/bigbluebutton/bbb-webrtc-sfu/production.yml mediasoup.dedicatedMediaTypeWorkers.audio "auto"

      Can I scale the number of streams up indefinitely with mediasoup?

      No. Scalability improves a lot with mediasoup, but there are still a couple of bottlenecks that can be hit as far as far as the media stack is concerned. Namely:

      • The signaling server (bbb-webrtc-sfu): it does not scale vertically indefinitely. There’s always work ongoing on this area that can be tracked in this issue;
      • The mediasoup worker balancing algorithm implemented by bbb-webrtc-sfu is still focused on multiparty meetings with a restrained number of users. If your goal is thousand-user 1-N (streaming-like) meetings, you may max out CPU usage on certain mediasoup workers even though there are other idle oworkers free.

      Kurento

      WebRTC video not working with Kurento

      Check the value for /proc/sys/net/ipv4/tcp_syncookies that it contains the value 1.

      $ cat /proc/sys/net/ipv4/tcp_syncookies
1

      If not, edit /etc/sysctl.conf and set the value for net.ipv4.tcp_syncookies to 1.

      net.ipv4.tcp_syncookies = 1

      Save the file and restart.

      Unit kurento-media-server.service is masked

      If sudo bbb-conf --check returns the warning

      Restarting BigBlueButton 2.0.0-RC9 (and cleaning out all log files) ...
Stopping BigBlueButton
 ... cleaning log files
Starting BigBlueButton
Failed to start kurento-media-server.service: Unit kurento-media-server.service is masked.

      You can unmask Kurento using the command

      $ systemctl unmask kurento-media-server.service

      The default installation of BigBlueButton should work in most netowrk configurations; however, if your users ae behind a restrictive network that blocks outgoing UDP connections, they may encounter 1020 errors (media unable to reach server).

      If you get reports of these errors, setup TURN server to help their browsers send WebRTC audio and video streams via TCP over port 443 to the TURN server. The TURN server will then relay the media to your BigBlueButton server.

      See Configure TURN.

      FreeSWITCH

      Configure BigBluebutton/FreeSWITCH to support IPV6

      The HTML5 client now enables users on mobile devices to connect to a BigBlueButton server. However, on some cellular networks iOS devices only receive an IPV6 address.

      To enable BigBlueButton (FreeSWITCH) to accept incoming web socket connections on IPV6, the BigBlueButton server must have an IPV6 address. You also need to make the following changes to the server.

      First, create the file /etc/nginx/conf.d/bigbluebutton_sip_addr_map.conf with this content:

      map $remote_addr $freeswitch_addr {
    "~:"    [2001:db8::1];
    default    192.0.2.1;
}

      replacing the ip addresses 192.0.2.1 with the system’s external IPV4 addresses, and replace 2001:db8::1 with the system’s external IPV6 address. Next, edit the file /etc/bigbluebutton/nginx/sip.nginx to have the following:

      proxy_pass https://$freeswitch_addr:7443;

      Next, ensure all of the following params are present in freeswitch’s sip_profiles/external-ipv6.xml:

      • ws-binding
      • wss-binding
      • rtcp-audio-interval-msec
      • rtcp-video-interval-msec
      • dtmf-type
      • liberal-dtmf
      • enable-3pcc

      If any are missing, copy them from sip_profiles/external.xml, then restart BigBlueButton (sudo bbb-conf --restart).

      FreeSWITCH fails to bind to IPV4

      In rare occasions after shutdown/restart, the FreeSWITCH database can get corrupted. This will cause FreeSWITCH to have problems binding to IPV4 address (you may see error 1006 when users try to connect).

      To check, look in /opt/freeswitch/var/log/freeswitch/freeswitch.log for errors related to loading the database.

      2018-10-25 11:05:11.444727 [ERR] switch_core_db.c:108 SQL ERR [unsupported file format]
2018-10-25 11:05:11.444737 [ERR] switch_core_db.c:223 SQL ERR [unsupported file format]
2018-10-25 11:05:11.444759 [NOTICE] sofia.c:5949 Started Profile internal-ipv6 [sofia_reg_internal-ipv6]
2018-10-25 11:05:11.444767 [CRIT] switch_core_sqldb.c:508 Failure to connect to CORE_DB sofia_reg_external!
2018-10-25 11:05:11.444772 [CRIT] sofia.c:3049 Cannot Open SQL Database [external]!

      If you see these errors, clear the FreeSWITCH database (BigBlueButton doesn’t use the database and FreeSWITCH will recreate it on startup).

      $ sudo systemctl stop freeswitch
$ rm -rf /opt/freeswitch/var/lib/freeswitch/db/*
$ sudo systemctl start freeswitch

      Forward calls from an Asterisk server to FreeSWITCH

      Let’s assume the following:

      asterisk server ip:          192.168.1.100
bigbluebutton/freeswitch ip: 192.168.1.200

      Changes to your Asterisk server

      Setup your gateway to BigBlueButton/FreeSWITCH. in /etc/asterisk/sip.conf add

      [fs-gw]
type=peer
username=fs-gw
insecure=very
contactpermit=192.168.1.200/255.255.255.255
qualify=no
nat=yes
host=192.168.1.200
canreinvite=no
disallow=all
allow=ulaw

      Route the calls to the gateway. In /etc/asterisk/extensions.conf context where your calls are being handled, forward the calls to the gateway. Here, when someone dials 85001, the call is sent to the fs-gw defined above.

      exten => 85001,1,Dial(SIP/fs-gw/${EXTEN})
exten => 85001,2,Hangup

      Changes to your BigBlueButton/FreeSWITCH server

      In BigBlueButton/FreeSWITCH, make the following changes:

      Lock down so that only Asterisk can forward calls to FreeSWITCH. In /opt/freeswitch/conf/autoload_configs/acl.conf.xml, add the following ACL. We also need to allow BigBlueButton to call into FreeSWITCH, that’s why we add the IP of BigBlueButton/FreeSWITCH into the ACL.

          <list name="asterisk-gw" default="deny">
       <node type="allow" cidr="192.168.1.200/32"/>
       <node type="allow" cidr="192.168.1.100/32"/>
       <node type="allow" cidr="127.0.0.1/32"/>
    </list>

      Then we apply the ACL into the profile that receives the calls from external gateways. In /opt/freeswitch/conf/sip_profiles/external.xml, add the ACL under <settings>

        <settings>
    <!-- Apply ACL from asterisk-gw -->
    <param name="apply-inbound-acl" value="asterisk-gw"/>
...
</settings>

      To debug, try connecting to FS CLI and increase logging level. Once connected, make your call and see what the logs say.

      $ /opt/freeswitch/bin/fs_cli -p $(xmlstarlet sel -t -m 'configuration/settings/param[@name="password"]' -v @value /opt/freeswitch/etc/freeswitch/autoload_configs/event_socket.conf.xml)

  Once connected:
  help -- shows the available commands
  console loglevel <level> -- change log level

  Ctrl-D to exit

      FreeSWITCH fails to bind to port 8021

      FreeSWITCH supports both IPV4 and IPV6. However, if your server does not support IPV6, FreeSWITCH will be unable to bind to port 8021. If you run sudo bbb-conf --check and see the following error

      # Error: Found text in freeswitch.log:
#
#    Thread ended for mod_event_socket
#
# FreeSWITCH may not be responding to requests on port 8021 (event socket layer)
# and users may have errors joining audio.
#

      it might be that your server has IPV6 disabled (or does not support it). You can check this by running the following command

      $ sudo ip addr | grep inet6
inet6 ::1/128 scope host
...

      If you do not see the line inet6 ::1/128 scope host, then your server has IPV6 disabled. In this case, we need to disable FreeSWITCH’s support for IPV6. First, edit /opt/freeswitch/etc/freeswitch/autoload_configs/event_socket.conf.xml and change the line

          <param name="listen-ip" value="::"/>

      to

          <param name="listen-ip" value="127.0.0.1"/>

      This tells FreeSWITCH that instead of binding port 8021 to the local IPV6 address, bind to the IPV4 address 127.0.0.1. Next, execute the following two commands

      $ sudo mv /opt/freeswitch/etc/freeswitch/sip_profiles/internal-ipv6.xml /opt/freeswitch/etc/freeswitch/sip_profiles/internal-ipv6.xml_
$ sudo mv /opt/freeswitch/etc/freeswitch/sip_profiles/external-ipv6.xml /opt/freeswitch/etc/freeswitch/sip_profiles/external-ipv6.xml_

      and then restart BigBlueButton with the commands

      $ sudo bbb-conf --clean
$ sudo bbb-conf --check

      FreeSWITCH fails to start with a SETSCHEDULER error

      When running in a container (like a chroot, OpenVZ or LXC), it might not be possible for FreeSWITCH to set its CPU priority to real-time round robin. If not, it will result in lower performance compared to a non-virtualized installation.

      If you running BigBlueButton in a container and an error starting FreeSWITCH, try running systemctl status freeswitch.service and see if you see the error related to SETSCHEDULER

      $ systemctl status freeswitch.service
● freeswitch.service - freeswitch
   Loaded: loaded (/lib/systemd/system/freeswitch.service; enabled; vendor preset: enabled)
   Active: inactive (dead) (Result: exit-code) since Mon 2017-10-02 16:17:29 UTC; 18s ago
  Process: 10967 ExecStart=/opt/freeswitch/bin/freeswitch -u freeswitch -g daemon -ncwait $DAEMON_OPTS (code=exited, status=214/SETSCHEDULER)
 Main PID: 3327 (code=exited, status=0/SUCCESS)

Oct 02 16:17:29 scw-9e2305 systemd[1]: Failed to start freeswitch.
Oct 02 16:17:29 scw-9e2305 systemd[1]: freeswitch.service: Unit entered failed state.
Oct 02 16:17:29 scw-9e2305 systemd[1]: freeswitch.service: Failed with result 'exit-code'.
Oct 02 16:17:29 scw-9e2305 systemd[1]: freeswitch.service: Service hold-off time over, scheduling restart.
Oct 02 16:17:29 scw-9e2305 systemd[1]: Stopped freeswitch.
Oct 02 16:17:29 scw-9e2305 systemd[1]: freeswitch.service: Start request repeated too quickly.
Oct 02 16:17:29 scw-9e2305 systemd[1]: Failed to start freeswitch.

      If you see SETSCHEDULER in the error message, edit /lib/systemd/system/freeswitch.service and comment out the line containing CPUSchedulingPolicy=rr (round robin)

      IOSchedulingPriority=2
#CPUSchedulingPolicy=rr
CPUSchedulingPriority=89

      Save the file, run systemctl daemon-reload, and then restart BigBlueButton. FreeSWITCH should now startup without error.

      Users not able to join Listen Only mode

      When doing sudo bbb-conf --check, you may see the warning

      voice Application failed to register with sip server

      This error occurs when bbb-apps-sip isn’t able to make a SIP call to FreeSWITCH. You’ll see this in BigBlueButton when users click the headset icon and don’t join the voice conference.

      One possible cause for this is you have just installed BigBlueButton, but not restarted it. The packages do not start up the BigBlueButton components in the right order. To restart BigBlueButton, do the following:

      $ sudo bbb-conf --restart
$ sudo bbb-conf --check

      If you don’t want FreeSWITCH to bind to 127.0.0.1, you need to figure out which IP address its using. First, determine the IP address FreeSWITCH is monitoring for incoming SIP calls with the following command:

      $ netstat -ant | grep 5060

      You should see an output such as

      tcp        0      0 234.147.116.3:5060    0.0.0.0:*               LISTEN

      In this example, FreeSWITCH is listening on IP address 234.147.116.3. The IP address on your server will be different.

      Next, edit /usr/share/red5/webapps/sip/WEB-INF/bigbluebutton-sip.properties and set the value for sip.server.host to the IP address returned from the above command. Save the changes (you’ll need to edit the file as root to save changes).

      Restart BigBlueButton using the commands and run the built-in diagnostics checks.

      $ sudo bbb-conf --clean
$ sudo bbb-conf --check

      Unable to connect using fs_cli

      As of BigBlueButton 2.2.18, the packaging now replaces the default ClueCon password for connecting to the FreeSWITCH command line interface (fs_cli) with a random password.

      (By default, FreeSWITCH only allowed unauthenticated connections from 127.0.0.1, but it’s still good security practice to not use default passwords).

      To connect to fs_cli, use the following command which supplies the password for authenticating.

      /opt/freeswitch/bin/fs_cli -p $(xmlstarlet sel -t -m 'configuration/settings/param[@name="password"]' -v @value /opt/freeswitch/etc/freeswitch/autoload_configs/event_socket.conf.xml)

      We also added /usr/local/bin/fs_clibbb with the contents

      #!/bin/bash

/opt/freeswitch/bin/fs_cli -p $(xmlstarlet sel -t -m 'configuration/settings/param[@name="password"]' -v @value /opt/freeswitch/etc/freeswitch/autoload_configs/event_socket.conf.xml)

      that will let you type fs_clibbb at the command prompt to get into FreeSWITCH console.

      Echo test hangs upgrading BigBlueButton 2.2

      The install scripts now change the default CLI password for FreeSWITCH and the other parts of BigBlueButton need to use this new password. For a new installation, the install scripts will automatically set this new password.

      If you upgrade using bbb-install.sh, the script will update the FreeSWITCH password using sudo bbb-conf --setip <hostname>.

      If you upgraded using manual steps, be sure to do ao sudo bbb-conf --setip <hostname> to sync all the FreeSWITCH passwords.

      FreeSWITCH using default stun server

      For many years, in BigBlueButton’s FreeSWITCH configuration file /opt/freeswitch/etc/freeswitch/vars.xml, the default value for external_rtp_ip was stun.freeswitch.org

        <X-PRE-PROCESS cmd="set" data="external_rtp_ip=stun:stun.freeswitch.org"/>

      However, this is not a reliable choice for stun server. Recommend either changing it to your servers external IP address or setup your own stun/turn server. For example, if your server has an external IP at 234.32.3.3

        <X-PRE-PROCESS cmd="set" data="external_rtp_ip=234.32.3.3"/>

      You can add a line in /etc/bigbluebutton/bbb-conf/apply-conf.sh to always apply this value even if the FreeSWITCH package upgrades.

      xmlstarlet edit --inplace --update '//X-PRE-PROCESS[@cmd="set" and starts-with(@data, "external_rtp_ip=")]/@data' --value "external_rtp_ip=234.32.3.3" /opt/freeswitch/conf/vars.xml

      Note: If your server has an internal/exteral IP address, such as on AWS EC2 server, be sure to set it to the external IP address configure a dummy network interface card (see Update FreeSWITCH).

      HTML5 Server

      bbb-html5 fails to start with a SETSCHEDULER error

      As of 2.2.31, the systemd unit file for bbb-html5.service now contains the following lines

      CPUSchedulingPolicy=fifo
Nice=19

      You can override this with creating the following directory

      mkdir /etc/systemd/system/bbb-html5.service.d

      and creating /etc/systemd/system/bbb-html5.service.d/override.conf with the following contents

      [Service]
CPUSchedulingPolicy=other
Nice=-10

      Then do systemctl daemon-reload and restart BigBlueButton.

      Installation and packages

      The following packages have unmet dependencies

      When installing the latest build of BigBlueButton, the package bbb-conf now uses yq to manage YAML files.

      You need to add the repository ppa:rmescandon/yq to your server. For steps on how to do this, see Update your server in the BigBlueButton 2.2 install guide.

      Alternatively, if you have not made any customizations to BigBlueButton (outside of using bbb-conf), you can use bbb-install.sh to install/upgrade to the latest version (the bbb-install.sh script will automatically install the repository for yq).

      No Symbolic Link

      If you’ve installed/uninstalled BigBlueButton packages, you may get a No Symbolic Link warning from bbb-conf --check:

      ** Potential Problems **
    nginx (conf): no symbolic link in /etc/nginx/sites-enabled for bigbluebutton

      To solve this, add a symbolic link to nginx for the BigBlueButton site:

      $ sudo ln -s /etc/nginx/sites-available/bigbluebutton /etc/nginx/sites-enabled/bigbluebutton
$ sudo /etc/init.d/nginx restart

      Package install fails with sed error

      Some of the BigBlueButton packages use sed scripts to extract contents from configuration files. If the file does not exist at the time of the script’s execution, or the sed script matches multiple entries in a file (such as when a configuration line is commented out), you can see an error such as

      Setting up bbb-client (1:2.0.0-374) ...
sed: -e expression #1, char 42: unterminated `s' command
dpkg: error processing package bbb-client (--configure):
 subprocess installed post-installation script returned error exit status 1
dpkg: dependency problems prevent configuration of bbb-config:
 bbb-config depends on bbb-client; however:
  Package bbb-client is not configured yet.

dpkg: error processing package bbb-config (--configure):
 dependency problems - leaving unconfigured
Errors were encountered while processing:
 bbb-client
 bbb-config
E: Sub-process /usr/bin/dpkg returned an error code (1)

      In the above example, the /var/lib/dpkg/info/bbb-client.postinst failed to finish. To debug, edit this file and change the first line to read

      and run

      $ sudo apt-get install -f

      You should now see each command in bbb-conf.postinst as it executes upto the line in which the error occurs. Post this output to https://groups.google.com/forum/#!forum/bigbluebutton-setup for help in resolving the issue.

      Errors with packages

      Some hosting providers do not provide a complete /etc/apt/source.list. If you are finding your are unable to install a package, try replacing your /etc/apt/sources.list with the following

      deb https://archive.ubuntu.com/ubuntu xenial main restricted universe multiverse
deb https://archive.ubuntu.com/ubuntu xenial-updates main restricted universe multiverse
deb https://security.ubuntu.com/ubuntu xenial-security main restricted universe multiverse

      then do

      and try installing BigBlueButton again from the beginning.

      WebRTC errors (1001, 1002,…)

      WebRTC offers very high-quality audio. However, the user’s network settings (or firewall) may not allow WebRTC to connect (or keep connected).

      Here are the following lists the possible WebRTC error messages that a user may encounter:

      • 1001: WebSocket disconnected — The WebSocket had connected successfully and has now disconnected. Possible Causes:
        • Loss of internet connection
        • Nginx restarting can cause this
      • 1002: Could not make a WebSocket connection — The initial WebSocket connection was unsuccessful. Possible Causes:
        • Firewall blocking ws protocol
        • Server is down or improperly configured
        • See potential solution here.
      • 1003: Browser version not supported — Browser doesn’t implement the necessary WebRTC API methods. Possible Causes:
        • Out of date browser
      • 1004: Failure on call — The call was attempted, but failed. Possible Causes:
        • For a full list of causes refer here
        • There are 24 different causes so I don’t really want to list all of them
        • Solution for this issue outlined here.
      • 1005: Call ended unexpectedly — The call was successful, but ended without user requesting to end the session. Possible Causes:
        • Unknown
      • 1006: Call timed out — The library took too long to try and connect the call. Possible Causes:
        • Previously caused by Firefox 33-beta on Mac. We’ve been unable to reproduce since release of FireFox 34
      • 1007: ICE negotiation failed — The browser and FreeSWITCH try to negotiate ports to use to stream the media and that negotiation failed. Possible Causes:
        • NAT is blocking the connection
        • Firewall is blocking the UDP connection/ports
      • 1008: Call transfer failed — A timeout while waiting for FreeSWITCH to transfer from the echo test to the real conference. This might be caused by a misconfiguration in FreeSWITCH, or there might be a media error and the DTMF command to transfer didn’t go through (In this case, the voice in the echo test probably didn’t work either.)
      • 1009: Could not fetch STUN/TURN server information — This indicates either a BigBlueButton bug (or you’re using an unsupported new client/old server combination), but could also happen due to a network interruption.
      • 1010: ICE negotiation timeout — After the call is accepted the client’s browser and the server try and negotiate a path for the audio data. In some network setups this negotiation takes an abnormally long time to fail and this timeout is set to avoid the client getting stuck.
      • 1020: Media cloud could not reach the server — See how to solve this here.

      Networking

      Server running behind NAT

      The following issue might be helpful in debugging if you run into errors and your server is behind NAT.

      Could not get your microphone for a WebRTC call

      Chrome requires (As of Chrome 47) that to access the user’s microphone for WebRTC your site must be serving pages via HTTPS (that is, nginx is configured with a SSL certificate).

      If the user attempts to share their microphone and your BigBlueButton sever is not configured for SSL, Chrome will block access and BigBlueButton will report the following error

      WebRTC Audio Failure: Detected the following WebRTC issue: Could not get your microphone for a WebRTC call. Do you want to try flash instead?

      To enable Chrome to access the user’s microphone, see Configure HTTPS on BigBlueButton.

      The browser is not supported

      When you attempt to join a BigBlueButton session, the client looks for supported browsers before fully loading. The client gets its list of supported browsers from /usr/share/meteor/bundle/programs/server/assets/app/config/settings.yml. You can see the list of supported browsers at the bottom. For example,

      - browser: mobileSafari
  version:
    - 11
    - 1

      states that Mobile Safari version 11.1 or later is supported (notice the first letter is lower case and concatenated with the remainder of the browser name).

      To add a browser to the list, first find your browser’s useragent. You could use a tool like https://wtools.io/check-my-user-agent as well. For example, with the Vivaldi browser you might see

      Vivaldi 2.8.1664 / Linux 0.0.0

      Next, to add this as a supported browser, append to settings.yml

      - browser: vivaldi
  version:
    - 2
    - 8

      save the updated settings.yml file, and then restart your BigBlueButton server with sudo bbb-conf --restart. Note any browser you add must support WebRTC libraries (not all do), so be sure to check it first with https://test.webrtc.org/.

      Tomcat shows “Cannot assign requested address on startup”

      If your server has multiple IP addresses, Tomcat might not pick the right address to bind. This could throw an error on installation when tomcat is attempting to install.

      Check /var/log/tomcat7/catalina.out for the following error

      Jan 30, 2018 9:17:37 AM org.apache.catalina.core.StandardServer await
SEVERE: StandardServer.await: create[localhost:8005]:
java.net.BindException: Cannot assign requested address (Bind failed)
 at java.net.PlainSocketImpl.socketBind(Native Method)

      If you see this, first ensure that there isn’t another copy of tomcat running by doing ps -aef | grep tomcat7. If you do see another copy running, try killing it and then restarting tomcat.

      If you still see the same error in catalina.out, then /etc/tomcat7/server.xml and change

      <Server port="8005" shutdown="SHUTDOWN">

      <Server address="0.0.0.0" port="8005" shutdown="SHUTDOWN">

      Restart tomcat7 again and it should start normally.

      nginx not running

      The common reasons for nginx not running are inability to bind to port 80 and configuration errors. To check if port 80 is already in use, use

      to see if any process is currently bound to port 80. If so, check to see if another web server is installed. If so, then stop the web server and try to restart nginx. One of the server requirements before you install BigBlueButton is that port 80 is not in use by another application (such as Apache). For details on why this is a requirements, see We recommend running BigBlueButton on port 80.

      If port 80 is free, check if your nginx configuration file has errors. Try a restart of nginx

      $ sudo systemctl restart nginx

      and look for the output of

         [ OK ]

      If you see [ Fail ], then your nginx configuration files might have a syntax error. Check the syntax of the nginx configuration files using the command

      and see if it reports any errors. You can also check the error.log file for nginx to see what errors it gives on startup

      $ sudo cat /var/log/nginx/error.log

      “Welcome to nginx”

      During installation of BigBlueButton the packaging scripts attempt to assign the correct IP address during setup. However, if the IP address changes (such as when rebooting a VM), or the first IP address was not the correct IP address for the server, you may see a “Welcome to nginx” page.

      To reconfigure the BigBlueButton to use the correct IP address or hostname, see BigBlueButton does not load.

      bbb-web

      404 Error when loading the client

      BigBlueButton 2.2 requires Java 8 as the default Java. Recently, some Ubuntu 16.04 distributions have switched the default version of Java to Java 9 (or later).

      Use java -version to check that the default version of 1.8.0.

      ~/dev$ java -version
openjdk version "1.8.0_242"
OpenJDK Runtime Environment (build 1.8.0_242-8u242-b08-0ubuntu3~16.04-b08)
OpenJDK 64-Bit Server VM (build 25.242-b08, mixed mode)

      If not, do the following

      sudo apt-get install openjdk-8-jre
update-alternatives --config java  # Choose java-8 as default

      Run java -version and confirm it now shows the default as 1.8.0, and then restart BigBlueButton with sudo bbb-conf --restart

      Blank presentation area on create or upload

      If you join a meeting and the default presentation is not visible or your uploaded presentation doesn’t display, then this is most likely due to a permissions error. To solve this, ensure that /var/bigbluebutton/ is owned by bigbluebutton rather than root or any other account. See this issue for more explanation.

      Unable to create presentation

      If you see the following error in /var/log/bigbluebutton/bbb-web.log

        failed to map segment from shared object: Operation not permitted

      use the command mount to check that the /tmp director does not have noexec permissions (which would prevent executables from running in the /tmp directory). If you see noexec for /tmp, you need to remount the directory with permissions that enable processes (such as the slide conversion) to execute in the /tmp directory.

      Too many open files

      On servers with greater than 8 CPU cores, bbb-web log (/var/log/bigbluebutton/bbb-web.log) may throw an error of Too many open files

      Caused by: java.io.IOException: Too many open files

      To resolve, create an override file that increases the number of open files for bbb-web

      $  sudo mkdir -p /etc/systemd/system/bbb-web.service.d/
$  sudo cat > /etc/systemd/system/bbb-web.service.d/override.conf << HERE
[Service]
LimitNOFILE=
LimitNOFILE=8192
HERE
$  sudo systemctl daemon-reload

      bbb-web takes a long time to startup

      bbb-web relies on the SecureRandom class (which uses available entropy) to provide random values for its session IDs. On a virtualized server, however, the available entropy can run low and cause bbb-web to block for a long period before it finishes it’s startup sequence (see Slow startup of tomcat).

      To provide bbb-web with more entropy, you can install haveged

      $ sudo apt-get install haveged

      For more information see How to Setup Additional Entropy for Cloud Servers Using Haveged.

      Error installing bbb-web

      If you get the following error during upgrade to BigBlueButton

      Unpacking bbb-web (1:2.2.0-67) over (1:2.2.0-66) ...
dpkg: error processing archive /var/cache/apt/archives/bbb-web_1%3a2.2.0-67_amd64.deb (--unpack):
 trying to overwrite '/etc/bigbluebutton/nginx/web', which is also in package bbb-client 1:2.2.0-28
dpkg-deb: error: subprocess paste was killed by signal (Broken pipe)
Errors were encountered while processing:
 /var/cache/apt/archives/bbb-web_1%3a2.2.0-67_amd64.deb
E: Sub-process /usr/bin/dpkg returned an error code (1)```

      Then first uninstall bbb-client

      $ sudo apt-get purge bbb-client

      and try installing BigBlueButton again.

      Other errors

      Root partition too small

      If the root partition on your BigBlueButton server is too small (for disk space requirements see Before you install), we recommend moving the following directories to an external partition with sufficient disk space.

      BigBlueButton processing and storage of recordings:

      Location of all media directories on disk available here.

      To make the move, we’ll first stop BigBlueButton, then move the above directories to a new location on the external partition, create symbolic links from the original locations to the new locations, and restart BigBlueButton.

      In the following example, the external partition is mounted on /mnt.

      $ sudo bbb-conf --stop

$ sudo mv /var/freeswitch/meetings /mnt
$ sudo ln -s /mnt/recordings /var/freeswitch/meetings

$ sudo mv /usr/share/red5/webapps/video/streams /mnt
$ sudo ln -s /mnt/streams /usr/share/red5/webapps/video/streams

$ sudo /var/bigbluebutton /mnt
$ sudo ln -s /mnt/bigbluebutton /var/bigbluebutton

$ sudo bbb-conf --start

      BigBlueButton does not load

      If your has changed it’s network connection (such as on reboot), you can clean most of BigBlueButton’s configuration files with the following steps.

      $ sudo bbb-conf --setip <ip_address_or_hostname>

$ sudo bbb-conf --clean
$ sudo bbb-conf --check

      For more information see bbb-conf options.

      Running within an LXD Container

      LXD is a very powerful container system for Ubuntu lets you run full Ubuntu 16.04 servers within a container. Because you can easily clone and snapshot LXD containers, they are ideal for development and testing of BigBlueButton.

      However, if you install BigBlueButton within an LXD container, you will get the following error from sudo bbb-conf --check

      ** Potential problems described below **

#
# Error: Unable to connect to the FreeSWITCH Event Socket Layer on port 8021

      You’ll also get an error from starting FreeSWITCH with bbb-conf --restart. When you try systemctl status freeswitch.service, you’ll see an error with SETSCHEDULER.

      $ sudo systemctl status freeswitch.service
● freeswitch.service - freeswitch
   Loaded: loaded (/lib/systemd/system/freeswitch.service; enabled; vendor preset: enabled)
   Active: inactive (dead) (Result: exit-code) since Wed 2017-04-26 16:34:24 UTC; 23h ago
  Process: 7038 ExecStart=/opt/freeswitch/bin/freeswitch -u freeswitch -g daemon -ncwait $DAEMON_OPTS (code=exited, status=214/SETSCHEDULER)

Apr 26 16:34:24 big systemd[1]: Failed to start freeswitch.
Apr 26 16:34:24 big systemd[1]: freeswitch.service: Unit entered failed state.
Apr 26 16:34:24 big systemd[1]: freeswitch.service: Failed with result 'exit-code'.
Apr 26 16:34:24 big systemd[1]: freeswitch.service: Service hold-off time over, scheduling restart.
Apr 26 16:34:24 big systemd[1]: Stopped freeswitch.
Apr 26 16:34:24 big systemd[1]: freeswitch.service: Start request repeated too quickly.
Apr 26 16:34:24 big systemd[1]: Failed to start freeswitch.

      This error occurs because the default systemd unit script for FreeSWITCH tries to run with permissions not available to the LXD container. To run FreeSWITCH within an LXD container, edit /lib/systemd/system/freeswitch.service and replace with the following

      [Unit]
Description=freeswitch
After=syslog.target network.target local-fs.target

[Service]
Type=forking
PIDFile=/opt/freeswitch/var/run/freeswitch/freeswitch.pid
Environment="DAEMON_OPTS=-nonat"
EnvironmentFile=-/etc/default/freeswitch
ExecStart=/opt/freeswitch/bin/freeswitch -u freeswitch -g daemon -ncwait $DAEMON_OPTS
TimeoutSec=45s
Restart=always
WorkingDirectory=/opt/freeswitch
User=freeswitch
Group=daemon

[Install]
WantedBy=multi-user.target

      Then enter the following commands to load the new unit file and restart BigBlueButton.

      $ sudo systemctl daemon-reload
$ sudo bbb-conf --restart

      You can run BigBlueButton within a LXD container.

      Unable to connect to redis

      The packages bbb-apps-akka, bbb-fsesl-akka, and bbb-transcode-akka are packaged by sbt, but they need to have redis-server running before they startup. If sudo bbb-conf --debug shows redis connection errors

      Sep 22 15:32:12 sv21 bbb-apps-akka[7804]: Exception in thread "main" io.lettuce.core.RedisConnectionException: Unable to connect to 127.0.0.1:6379
Sep 22 15:32:12 sv21 bbb-apps-akka[7804]: #011at io.lettuce.core.RedisConnectionException.create(RedisConnectionException.java:78)
Sep 22 15:32:12 sv21 bbb-apps-akka[7804]: #011at io.lettuce.core.RedisConnectionException.create(RedisConnectionException.java:56)
Sep 22 15:32:12 sv21 bbb-apps-akka[7804]: Caused by: io.netty.channel.AbstractChannel$AnnotatedConnectException: Connection refused: /127.0.0.1:6379
Sep 22 15:32:12 sv21 bbb-apps-akka[7804]: Caused by: java.net.ConnectException: Connection refused
Sep 22 15:32:12 sv21 bbb-fsesl-akka[7893]: Exception in thread "main" io.lettuce.core.RedisConnectionException: Unable to connect to 127.0.0.1:6379
Sep 22 15:32:12 sv21 bbb-fsesl-akka[7893]: #011at io.lettuce.core.RedisConnectionException.create(RedisConnectionException.java:78)
Sep 22 15:32:12 sv21 bbb-fsesl-akka[7893]: #011at io.lettuce.core.RedisConnectionException.create(RedisConnectionException.java:56)
Sep 22 15:32:12 sv21 bbb-fsesl-akka[7893]: Caused by: io.netty.channel.AbstractChannel$AnnotatedConnectException: Connection refused: /127.0.0.1:6379
Sep 22 15:32:12 sv21 bbb-fsesl-akka[7893]: Caused by: java.net.ConnectException: Connection refused
Sep 22 15:32:13 sv21 bbb-transcode-akka[8001]: Exception in thread "main" io.lettuce.core.RedisConnectionException: Unable to connect to 127.0.0.1:6379
Sep 22 15:32:13 sv21 bbb-transcode-akka[8001]: #011at io.lettuce.core.RedisConnectionException.create(RedisConnectionException.java:78)
Sep 22 15:32:13 sv21 bbb-transcode-akka[8001]: #011at io.lettuce.core.RedisConnectionException.create(RedisConnectionException.java:56)
Sep 22 15:32:13 sv21 bbb-transcode-akka[8001]: Caused by: io.netty.channel.AbstractChannel$AnnotatedConnectException: Connection refused: /127.0.0.1:6379
Sep 22 15:32:13 sv21 bbb-transcode-akka[8001]: Caused by: java.net.ConnectException: Connection refused

      you can add overrides for these three packages to ensure they start after redis.server. Run the following script.

      #!/bin/bash

mkdir -p /etc/systemd/system/bbb-apps-akka.service.d
cat > /etc/systemd/system/bbb-apps-akka.service.d/override.conf <<HERE
[Unit]
Requires=redis-server.service
After=redis-server.service
HERE

mkdir -p /etc/systemd/system/bbb-fsesl-akka.service.d
cat > /etc/systemd/system/bbb-fsesl-akka.service.d/override.conf <<HERE
[Unit]
Requires=redis-server.service
After=redis-server.service
HERE


mkdir -p /etc/systemd/system/bbb-transcode-akka.service.d
cat > /etc/systemd/system/bbb-transcode-akka.service.d/override.conf <<HERE
[Unit]
Requires=redis-server.service
After=redis-server.service
HERE

      The script bbb-install now creates these overrides by default.

      500 Internal Server Error

      It is most likely an error on GreenLight. Check the log file according to Troubleshooting Greenlight.

      If this error occurrs on just a small number of PCs accessing a BigBlueButton server within a LAN through a proxy server and you find the description “Error::Unsafe Host Error (x.x.x.x is not a safe host)” (where x.x.x.x is an IP address) in the log file, check if the “Don’t use the proxy server for local (intranet) addresses” (in the Windows proxy setting) is ticked.

      Legacy errors

      Conference not found errors

      The command sudo bbb-conf --debug searches through the red5, tomcat7, and nginx logs looking for errors and exceptions. However, the messages such as

          -- ERRORS found in /usr/share/red5/log/* --
/usr/share/red5/log/bigbluebutton.log:2015-05-02 13:50:37,681-04:00 [pool-17-thread-1] ERROR o.b.w.v.f.a.PopulateRoomCommand - Not XML: [Conference 78505 not found]

      are innocuous and can be ignored.

      1007: Verify that any firewalls are not blocking UDP traffic, per Bongo’s article about firewall ports. If you’re using a VPN, try connecting to the meeting without it. Then, refresh the browser and try again.

      Then, How do I fix Genshin download error? Right-click on the Genshin Impact executable file, then select Properties. Click on the Compatibility tab, and tick the box that says Run this program as an administrator. Restart the game.

      Why does my Genshin Impact Download keep failing? One of the first things to try is to update your game drivers and make sure these are working properly. If your drivers are not fully up to date, then they might not be communicating properly with your updated game. So if you have an NVIDIA graphics card, you can go here. Or if you have an AMD graphics card, it’s here.

      Similarly, What is error code Genshin Impact?

      The Genshin Impact Error Code 9107 and 9908 are error codes that you don’t need to worry about. They occur when a new update for the game is available and the servers are down due to that. There are a number of other error codes that occur due to the same reason.

      What does ICE error mean?

      ICE Error 1007 means either your firewall is preventing the connection for your virtual classroom or NAT is blocking the connection. If you are using a VPN to connect to the network try turning it off and then connecting if that fails check for firewall settings for UDP traffic.

      What is an ice error? When a call is connected using the Twilio Voice JavaScript SDK (formerly « Twilio Client »), the client and server exchange periodic messages verifying that the call is alive. If these message exchanges fail, it could indicate a problem with the connection to Twilio.

      How do you fix an ice connection? ICE Checking Discord – What it means and how to fix this‍

      1. Restart everything.
      2. Check for internet outages.
      3. Check if your firewall/ antivirus is the cause of ICE checking on Discord.
      4. Use a VPN with an UDP.
      5. Check your network admin.
      6. Change the voice region.
      7. Contact Discord support.

      How do I install BigBlueButton? Grab a cup of your favorite beverage and let’s begin!

      1. Update your server. First, make sure your server is up-to-date with latest packages and security updates. …
      2. Install apt-get key for BigBlueButton repository. …
      3. Back up custom configurations. …
      4. Install BigBlueButton. …
      5. Install API demos (optional) …
      6. Restart your server. …
      7. Next steps.

      What is ice twilio?

      Interactive Connectivity Establishment (ICE) is a blanket standard that describes how to coordinate STUN and TURN to make a connection between hosts. Twilio’s Network Traversal Service implements STUN and TURN for ICE-compatible clients, such as browsers supporting the WebRTC standard.

      How do I fix big Bluebutton? —-Verify that the BigBlueButton meeting link has been granted permission to use the microphone or camera by the browser. If not, you must grant permission and re-join the audio or share the camera. —- If it still doesn’t work, try switching browsers, either from Chrome to Firefox or from Firefox to Chrome.

      What is incompatible SDP?

      This error apparently means that there is an issue with webrtc querying your ip address. If you have uBlock origin or Privacy Badger, check there settings and make sure the option to block sharing your local ip is not set.

      What does ice checking mean? ICE checking means your network is blocking Discord from connecting to voice server.

      Is BigBlueButton better than zoom?

      BigBlueButton and Zoom both meet the requirements of our reviewers at a comparable rate. When comparing quality of ongoing product support, BigBlueButton and Zoom provide similar levels of assistance. For feature updates and roadmaps, our reviewers preferred the direction of BigBlueButton over Zoom.

      Which is better Jitsi or BigBlueButton?

      BigBlueButton is significantly superior to Jitsi when it comes to the integration with the online learning platform.

      Do you have to pay for BigBlueButton? BigBlueButton is open-source software, meaning it is free for both personal and commercial use.

      What is TURN STUN? TURN is a relay — both clients send data to the TURN server, which forwards it to the other client. STUN is not a relay — the STUN server helps to « make the connection » between the clients (by discovering and exchanging their external host:port pairs), after which they send data to each other directly.

      What is a STUN server used for?

      The STUN server enables clients to find out their public IP address, NAT type, and the Internet-facing port associated by the NAT device with a particular local port. This information is used to set up a UDP communication session between the client and the VoIP provider to establish a call.

      What is TURN SIP? TURN is an extension for STUN-bis protocol to facilitate NAT traversal when one or both endpoints are behind NAT. With TURN, media traffic for the session will have to go to a relay server.

      Can’t create a web socket connection?

      1002: Could not make a WebSocket connection – The initial WebSocket connection was unsuccessful. Possible Causes: Firewall blocking ws protocol. Server is down or improperly configured.

      Why can’t I see video on BigBlueButton? This is caused by your browser’s security settings blocking access to the tool. You have to go through the same steps that you go through when accessing videos or other external content, as the browser may be blocking it so that it looks like a blank screen.

      How do you use BigBlueButton?

      How do you fix ice Error 1004? Steps to reproduce the behavior:

      1. Join with microphone a couple of times.
      2. Sometimes you get 1004 (especially if you don’t use a different STUN server from bbb’s default)
      3. If you try joining again (one or a couple of times again) you will sucessfully connect to audio.

      What is RTC disconnected?

      What does “RTC Connecting” mean? First thing first, a little info about the “RTC Connecting” error. As Discord relies on the WebRTC protocol to function properly, the “RTC Connecting” error is then a network-related problem. It simply means Discord is experiencing issues when trying to connect to a remote server.

      How do you fix RTC Discord?

      1. Fix 1: Restart Discord.
      2. Fix 2: Restart your PC/laptop.
      3. Fix 3: Check Network Settings.
      4. Fix 4: Update Discord Client.
      5. Fix 5: Choose a different server region.
      6. Fix 6: Use VPN.
      7. Fix 7: Disable IPv6.
      8. Fix 8: Disable Quality of Service (QoS) on Discord.

      How do you fix no route Discord?

      Once done, proceed with the solutions below.

      1. Method 1: Restart Modem/Router And Computer. …
      2. Method 2: Uninstall 3rd Party Firewall or Whitelist Discord (If Applicable) …
      3. Method 5: Change the Server’s Voice Region. …
      4. Method 6: Disable QoS From Voice & Video Settings. …
      5. Method 7: Flushing the DNS Setting.

      Who uses BigBlueButton? As a result, BigBlueButton has been deeply embedded into major learning management systems used world-wide. It has been adopted by Canvas, Moodle Cloud, Sakai, Jenzabar, D2L, and Schoology as their default virtual classroom. Together, these vendors comprise more than 75% of the world-wide market for LMS systems.

      How many users can Bigblue handle? How many simultaneous users can BigBlueButton support. As a rule of thumb, if your BigBlueButton server meets the minimum requirements, the server should be able to support 150 simultaneous users, such as 3 simultaneous sessions of 50 users, 6 x 25, etc.

      What is Zoom BigBlueButton?

      The primary purpose of Zoom is online meetings, whereas the primary purpose of BigBlueButton is online teaching. Hence BigBlueButton focuses on providing features for students engagement during the class and analytics from the classes to assess and evaluate students.

      Don’t forget to share this post !

      Содержание

      1. Error 1007 ICE. Failed joining audio conf. #8418
      2. Comments
      3. ikaikai commented Dec 12, 2019 •
      4. Bigbluebutton не работает микрофон 1007
      5. Introduction
      6. Recording
      7. Recording not processing after upgrading
      8. Kurento
      9. WebRTC video not working with Kurento
      10. Unit kurento-media-server.service is masked
      11. Unable to share webcam
      12. FreeSWITCH
      13. Configure BigBluebutton/FreeSWITCH to support IPV6
      14. FreeSWITCH fails to bind to IPV4
      15. Forward calls from an Asterisk server to FreeSWITCH
      16. Changes to your Asterisk server
      17. Changes to your BigBlueButton/FreeSWITCH server
      18. FreeSWITCH fails to bind to port 8021
      19. FreeSWITCH fails to start with a SETSCHEDULER error
      20. Users not able to join Listen Only mode
      21. Unable to connect using fs_cli
      22. Echo test hangs upgrading BigBlueButton 2.2
      23. FreeSWITCH using default stun server
      24. HTML5 Server
      25. bbb-html5 fails to start with a SETSCHEDULER error
      26. Installation and packages
      27. The following packages have unmet dependencies
      28. No Symbolic Link
      29. Package install fails with sed error
      30. Errors with packages
      31. WebRTC errors (1001, 1002,…)
      32. Networking
      33. Server running behind NAT
      34. Could not get your microphone for a WebRTC call
      35. The browser is not supported
      36. Tomcat shows “Cannot assign requested address on startup”
      37. nginx not running
      38. “Welcome to nginx”
      39. bbb-web
      40. 404 Error when loading the client
      41. Blank presentation area on create or upload
      42. Unable to create presentation
      43. Too many open files
      44. bbb-web takes a long time to startup
      45. Error installing bbb-web
      46. Other errors
      47. Root partition too small
      48. BigBlueButton does not load
      49. Running within an LXD Container
      50. Unable to connect to redis
      51. 500 Internal Server Error
      52. Legacy errors
      53. Conference not found errors

      Error 1007 ICE. Failed joining audio conf. #8418

      [11:41:24:0464] INFO: clientLogger: Audio call session accepted InviteClientContext.p (https://class.demos.cloud/html5client/23acf17a7f66feccb643e681b6de9fd0361d4c3a.js?meteor_js_resource=true:125:1167498)
      sip.js?v=815:1272 SIP.EventEmitter#off is deprecated and may be removed in future SIP.js versions.
      Please use removeListener or removeAllListeners instead.
      See here for more details:
      http://nodejs.org/api/events.html#events_emitter_removelistener_event_listener
      off @ sip.js?v=815:1272
      p @ 23acf17a7f66feccb643e681b6de9fd0361d4c3a.js?meteor_js_resource=true:125
      EventEmitter.emit @ sip.js?v=815:115
      accepted @ sip.js?v=815:5641
      onSuccess @ sip.js?v=815:6854
      (anonymous) @ 23acf17a7f66feccb643e681b6de9fd0361d4c3a.js?meteor_js_resource=true:1
      Promise.then (async)
      n.then @ 23acf17a7f66feccb643e681b6de9fd0361d4c3a.js?meteor_js_resource=true:21
      receiveInviteResponse @ sip.js?v=815:6835
      receiveResponse @ sip.js?v=815:3784
      InviteClientTransaction.receiveResponse @ sip.js?v=815:7835
      onMessage @ sip.js?v=815:8569
      ws.onmessage @ sip.js?v=815:8427
      sip.js?v=815:2900 Thu Dec 12 2019 11:41:29 GMT+0800 (中国标准时间) | sip.invitecontext.mediahandler | RTCIceChecking Timeout Triggered after 5000 milliseconds
      23acf17a7f66feccb643e681b6de9fd0361d4c3a.js?meteor_js_resource=true:9 [11:41:39:0496] ERROR: clientLogger: ICE connection failed before success MediaHandler.g (https://class.demos.cloud/html5client/23acf17a7f66feccb643e681b6de9fd0361d4c3a.js?meteor_js_resource=true:125:1168708)
      sip.js?v=815:1272 SIP.EventEmitter#off is deprecated and may be removed in future SIP.js versions.
      Please use removeListener or removeAllListeners instead.
      See here for more details:
      http://nodejs.org/api/events.html#events_emitter_removelistener_event_listener
      off @ sip.js?v=815:1272
      (anonymous) @ 23acf17a7f66feccb643e681b6de9fd0361d4c3a.js?meteor_js_resource=true:125
      g @ 23acf17a7f66feccb643e681b6de9fd0361d4c3a.js?meteor_js_resource=true:125
      EventEmitter.emit @ sip.js?v=815:112
      peerConnection.oniceconnectionstatechange @ sip.js?v=815:11580
      sip.js?v=815:1272 SIP.EventEmitter#off is deprecated and may be removed in future SIP.js versions.
      Please use removeListener or removeAllListeners instead.
      See here for more details:
      http://nodejs.org/api/events.html#events_emitter_removelistener_event_listener
      off @ sip.js?v=815:1272
      (anonymous) @ 23acf17a7f66feccb643e681b6de9fd0361d4c3a.js?meteor_js_resource=true:125
      (anonymous) @ 23acf17a7f66feccb643e681b6de9fd0361d4c3a.js?meteor_js_resource=true:125
      exitAudio @ 23acf17a7f66feccb643e681b6de9fd0361d4c3a.js?meteor_js_resource=true:125
      d @ 23acf17a7f66feccb643e681b6de9fd0361d4c3a.js?meteor_js_resource=true:125
      l @ 23acf17a7f66feccb643e681b6de9fd0361d4c3a.js?meteor_js_resource=true:125
      g @ 23acf17a7f66feccb643e681b6de9fd0361d4c3a.js?meteor_js_resource=true:125
      EventEmitter.emit @ sip.js?v=815:112
      peerConnection.oniceconnectionstatechange @ sip.js?v=815:11580
      sip.js?v=815:2900 Thu Dec 12 2019 11:41:39 GMT+0800 (中国标准时间) | sip.inviteclientcontext | terminating Session
      sip.js?v=815:2900 Thu Dec 12 2019 11:41:39 GMT+0800 (中国标准时间) | sip.transport | sending WebSocket message:

      BYE sip:919667998@44.228.244.151:5060;transport=udp SIP/2.0
      Via: SIP/2.0/WSS 33jndlprjgjs.invalid;branch=z9hG4bK5167729
      Max-Forwards: 70
      To: sip:919667998@class.demos.cloud;tag=75vDUmHFpe78F
      From: «w_5sia44tmkbqy_9-bbbID-Tiankai» sip:w_5sia44tmkbqy_9-bbbID-Tiankai@class.demos.cloud;tag=86ejcjj0gc
      Call-ID: 6084n2qs56sqd3loqlrh
      CSeq: 5768 BYE
      Supported: outbound
      User-Agent: BigBlueButton
      Content-Length: 0

      sip.js?v=815:2900 Thu Dec 12 2019 11:41:39 GMT+0800 (中国标准时间) | sip.inviteclientcontext | closing INVITE session 6084n2qs56sqd3loqlrhs31fkqc5q2
      sip.js?v=815:2900 Thu Dec 12 2019 11:41:39 GMT+0800 (中国标准时间) | sip.invitecontext.mediahandler | closing PeerConnection

      The text was updated successfully, but these errors were encountered:

      Источник

      Bigbluebutton не работает микрофон 1007

      If you encountered any problems with the installation of BigBlueButton, this section covers how to resolve many of the common issues.

      If you have not already done so, read through the getting help section.

      Introduction

      Start here: run sudo bbb-conf —check

      We’ve built in a BigBlueButton configuration utility, called bbb-conf , to help you configure your BigBlueButton server and troubleshoot your setup if something doesn’t work right.

      If you think something isn’t working correctly, the first step is enter the following command.

      This will check your setup to ensure the correct processes are running, the BigBlueButton components have correctly started, and look for common configuration problems that might prevent BigBlueButton from working properly.

      If you see text after the line ** Potential problems described below ** , then it may be warnings (which you can ignore if you’ve change settings) or errors with the setup.

      Recording

      Recording not processing after upgrading

      If after updating from BigBlueButton 2.0 to BigBlueButton 2.2 your recordings are not processing, and if you are seeing Permission denied errors in /var/log/bigbluebutton/bbb-rap-worker.log

      You can resolve the errors with the following command

      and then rebuild the recordings that had not yet processed. You can see the list of recordings with

      and then to rebuild a recording, use sudo bbb-record —rebuild , as in

      Kurento

      WebRTC video not working with Kurento

      Check the value for /proc/sys/net/ipv4/tcp_syncookies that it contains the value 1 .

      If not, edit /etc/sysctl.conf and set the value for net.ipv4.tcp_syncookies to 1 .

      Save the file and restart.

      Unit kurento-media-server.service is masked

      If sudo bbb-conf —check returns the warning

      You can unmask Kurento using the command

      The default installation of BigBlueButton should work in most netowrk configurations; however, if your users ae behind a restrictive network that blocks outgoing UDP connections, they may encounter 1020 errors (media unable to reach server).

      If you get reports of these errors, setup TURN server to help their browsers send WebRTC audio and video streams via TCP over port 443 to the TURN server. The TURN server will then relay the media to your BigBlueButton server.

      FreeSWITCH

      Configure BigBluebutton/FreeSWITCH to support IPV6

      The HTML5 client now enables users on mobile devices to connect to a BigBlueButton server. However, on some cellular networks iOS devices only receive an IPV6 address.

      To enable BigBlueButton (FreeSWITCH) to accept incoming web socket connections on IPV6, the BigBlueButton server must have an IPV6 address. You also need to make the following changes to the server.

      First, create the file /etc/nginx/conf.d/bigbluebutton_sip_addr_map.conf with this content:

      replacing the ip addresses 192.0.2.1 with the system’s external IPV4 addresses, and replace 2001:db8::1 with the system’s external IPV6 address. Next, edit the file /etc/bigbluebutton/nginx/sip.nginx to have the following:

      Next, ensure all of the following params are present in freeswitch’s sip_profiles/external-ipv6.xml :

      • ws-binding
      • wss-binding
      • rtcp-audio-interval-msec
      • rtcp-video-interval-msec
      • dtmf-type
      • liberal-dtmf
      • enable-3pcc

      If any are missing, copy them from sip_profiles/external.xml , then restart BigBlueButton ( sudo bbb-conf —restart ).

      FreeSWITCH fails to bind to IPV4

      In rare occasions after shutdown/restart, the FreeSWITCH database can get corrupted. This will cause FreeSWITCH to have problems binding to IPV4 address (you may see error 1006 when users try to connect).

      To check, look in /opt/freeswitch/var/log/freeswitch/freeswitch.log for errors related to loading the database.

      If you see these errors, clear the FreeSWITCH database (BigBlueButton doesn’t use the database and FreeSWITCH will recreate it on startup).

      Forward calls from an Asterisk server to FreeSWITCH

      Let’s assume the following:

      Changes to your Asterisk server

      Setup your gateway to BigBlueButton/FreeSWITCH. in /etc/asterisk/sip.conf add

      Route the calls to the gateway. In /etc/asterisk/extensions.conf context where your calls are being handled, forward the calls to the gateway. Here, when someone dials 85001, the call is sent to the fs-gw defined above.

      Changes to your BigBlueButton/FreeSWITCH server

      In BigBlueButton/FreeSWITCH, make the following changes:

      Lock down so that only Asterisk can forward calls to FreeSWITCH. In /opt/freeswitch/conf/autoload_configs/acl.conf.xml , add the following ACL. We also need to allow BigBlueButton to call into FreeSWITCH, that’s why we add the IP of BigBlueButton/FreeSWITCH into the ACL.

      Then we apply the ACL into the profile that receives the calls from external gateways. In /opt/freeswitch/conf/sip_profiles/external.xml , add the ACL under

      To debug, try connecting to FS CLI and increase logging level. Once connected, make your call and see what the logs say.

      FreeSWITCH fails to bind to port 8021

      FreeSWITCH supports both IPV4 and IPV6. However, if your server does not support IPV6, FreeSWITCH will be unable to bind to port 8021. If you run sudo bbb-conf —check and see the following error

      it might be that your server has IPV6 disabled (or does not support it). You can check this by running the following command

      If you do not see the line inet6 ::1/128 scope host , then your server has IPV6 disabled. In this case, we need to disable FreeSWITCH’s support for IPV6. First, edit /opt/freeswitch/etc/freeswitch/autoload_configs/event_socket.conf.xml and change the line

      This tells FreeSWITCH that instead of binding port 8021 to the local IPV6 address, bind to the IPV4 address 127.0.0.1. Next, execute the following two commands

      and then restart BigBlueButton with the commands

      FreeSWITCH fails to start with a SETSCHEDULER error

      When running in a container (like a chroot, OpenVZ or LXC), it might not be possible for FreeSWITCH to set its CPU priority to real-time round robin. If not, it will result in lower performance compared to a non-virtualized installation.

      If you running BigBlueButton in a container and an error starting FreeSWITCH, try running systemctl status freeswitch.service and see if you see the error related to SETSCHEDULER

      If you see SETSCHEDULER in the error message, edit /lib/systemd/system/freeswitch.service and comment out the line containing CPUSchedulingPolicy=rr (round robin)

      Save the file, run systemctl daemon-reload , and then restart BigBlueButton. FreeSWITCH should now startup without error.

      Users not able to join Listen Only mode

      When doing sudo bbb-conf —check , you may see the warning

      This error occurs when bbb-apps-sip isn’t able to make a SIP call to FreeSWITCH. You’ll see this in BigBlueButton when users click the headset icon and don’t join the voice conference.

      One possible cause for this is you have just installed BigBlueButton, but not restarted it. The packages do not start up the BigBlueButton components in the right order. To restart BigBlueButton, do the following:

      If you don’t want FreeSWITCH to bind to 127.0.0.1, you need to figure out which IP address its using. First, determine the IP address FreeSWITCH is monitoring for incoming SIP calls with the following command:

      You should see an output such as

      In this example, FreeSWITCH is listening on IP address 234.147.116.3. The IP address on your server will be different.

      Next, edit /usr/share/red5/webapps/sip/WEB-INF/bigbluebutton-sip.properties and set the value for sip.server.host to the IP address returned from the above command. Save the changes (you’ll need to edit the file as root to save changes).

      Restart BigBlueButton using the commands and run the built-in diagnostics checks.

      Unable to connect using fs_cli

      As of BigBlueButton 2.2.18, the packaging now replaces the default ClueCon password for connecting to the FreeSWITCH command line interface ( fs_cli ) with a random password.

      (By default, FreeSWITCH only allowed unauthenticated connections from 127.0.0.1, but it’s still good security practice to not use default passwords).

      To connect to fs_cli , use the following command which supplies the password for authenticating.

      We also added /usr/local/bin/fs_clibbb with the contents

      that will let you type fs_clibbb at the command prompt to get into FreeSWITCH console.

      Echo test hangs upgrading BigBlueButton 2.2

      The install scripts now change the default CLI password for FreeSWITCH and the other parts of BigBlueButton need to use this new password. For a new installation, the install scripts will automatically set this new password.

      If you upgrade using bbb-install.sh, the script will update the FreeSWITCH password using sudo bbb-conf —setip .

      If you upgraded using manual steps, be sure to do ao sudo bbb-conf —setip to sync all the FreeSWITCH passwords.

      FreeSWITCH using default stun server

      For many years, in BigBlueButton’s FreeSWITCH configuration file /opt/freeswitch/etc/freeswitch/vars.xml , the default value for external_rtp_ip was stun.freeswitch.org

      However, this is not a reliable choice for stun server. Recommend either changing it to your servers external IP address or setup your own stun/turn server. For example, if your server has an external IP at 234.32.3.3

      You can add a line in /etc/bigbluebutton/bbb-conf/apply-conf.sh to always apply this value even if the FreeSWITCH package upgrades.

      Note: If your server has an internal/exteral IP address, such as on AWS EC2 server, be sure to set it to the external IP address configure a dummy network interface card (see Update FreeSWITCH).

      HTML5 Server

      bbb-html5 fails to start with a SETSCHEDULER error

      As of 2.2.31, the systemd unit file for bbb-html5.service now contains the following lines

      You can override this with creating the following directory

      and creating /etc/systemd/system/bbb-html5.service.d/override.conf with the following contents

      Then do systemctl daemon-reload and restart BigBlueButton.

      Installation and packages

      The following packages have unmet dependencies

      When installing the latest build of BigBlueButton, the package bbb-conf now uses yq to manage YAML files.

      You need to add the repository ppa:rmescandon/yq to your server. For steps on how to do this, see Update your server in the BigBlueButton 2.2 install guide.

      Alternatively, if you have not made any customizations to BigBlueButton (outside of using bbb-conf ), you can use bbb-install.sh to install/upgrade to the latest version (the bbb-install.sh script will automatically install the repository for yq ).

      No Symbolic Link

      If you’ve installed/uninstalled BigBlueButton packages, you may get a No Symbolic Link warning from bbb-conf —check :

      To solve this, add a symbolic link to nginx for the BigBlueButton site:

      Package install fails with sed error

      Some of the BigBlueButton packages use sed scripts to extract contents from configuration files. If the file does not exist at the time of the script’s execution, or the sed script matches multiple entries in a file (such as when a configuration line is commented out), you can see an error such as

      In the above example, the /var/lib/dpkg/info/bbb-client.postinst failed to finish. To debug, edit this file and change the first line to read

      You should now see each command in bbb-conf.postinst as it executes upto the line in which the error occurs. Post this output to https://groups.google.com/forum/#!forum/bigbluebutton-setup for help in resolving the issue.

      Errors with packages

      Some hosting providers do not provide a complete /etc/apt/source.list . If you are finding your are unable to install a package, try replacing your /etc/apt/sources.list with the following

      and try installing BigBlueButton again from the beginning.

      WebRTC errors (1001, 1002,…)

      WebRTC offers very high-quality audio. However, the user’s network settings (or firewall) may not allow WebRTC to connect (or keep connected).

      Here are the following lists the possible WebRTC error messages that a user may encounter:

      • 1001: WebSocket disconnected — The WebSocket had connected successfully and has now disconnected. Possible Causes:
        • Loss of internet connection
        • Nginx restarting can cause this
      • 1002: Could not make a WebSocket connection — The initial WebSocket connection was unsuccessful. Possible Causes:
        • Firewall blocking ws protocol
        • Server is down or improperly configured
        • See potential solution here.
      • 1003: Browser version not supported — Browser doesn’t implement the necessary WebRTC API methods. Possible Causes:
        • Out of date browser
      • 1004: Failure on call — The call was attempted, but failed. Possible Causes:
        • For a full list of causes refer here
        • There are 24 different causes so I don’t really want to list all of them
        • Solution for this issue outlined here.
      • 1005: Call ended unexpectedly — The call was successful, but ended without user requesting to end the session. Possible Causes:
        • Unknown
      • 1006: Call timed out — The library took too long to try and connect the call. Possible Causes:
        • Previously caused by Firefox 33-beta on Mac. We’ve been unable to reproduce since release of FireFox 34
      • 1007: ICE negotiation failed — The browser and FreeSWITCH try to negotiate ports to use to stream the media and that negotiation failed. Possible Causes:
        • NAT is blocking the connection
        • Firewall is blocking the UDP connection/ports
      • 1008: Call transfer failed — A timeout while waiting for FreeSWITCH to transfer from the echo test to the real conference. This might be caused by a misconfiguration in FreeSWITCH, or there might be a media error and the DTMF command to transfer didn’t go through (In this case, the voice in the echo test probably didn’t work either.)
      • 1009: Could not fetch STUN/TURN server information — This indicates either a BigBlueButton bug (or you’re using an unsupported new client/old server combination), but could also happen due to a network interruption.
      • 1010: ICE negotiation timeout — After the call is accepted the client’s browser and the server try and negotiate a path for the audio data. In some network setups this negotiation takes an abnormally long time to fail and this timeout is set to avoid the client getting stuck.
      • 1020: Media cloud could not reach the server — See how to solve this here.

      Networking

      Server running behind NAT

      The following issue might be helpful in debugging if you run into errors and your server is behind NAT.

      Could not get your microphone for a WebRTC call

      Chrome requires (As of Chrome 47) that to access the user’s microphone for WebRTC your site must be serving pages via HTTPS (that is, nginx is configured with a SSL certificate).

      If the user attempts to share their microphone and your BigBlueButton sever is not configured for SSL, Chrome will block access and BigBlueButton will report the following error

      WebRTC Audio Failure: Detected the following WebRTC issue: Could not get your microphone for a WebRTC call. Do you want to try flash instead?

      To enable Chrome to access the user’s microphone, see Configure HTTPS on BigBlueButton.

      The browser is not supported

      When you attempt to join a BigBlueButton session, the client looks for supported browsers before fully loading. The client gets its list of supported browsers from /usr/share/meteor/bundle/programs/server/assets/app/config/settings.yml . You can see the list of supported browsers at the bottom. For example,

      states that Mobile Safari version 11.1 or later is supported (notice the first letter is lower case and concatenated with the remainder of the browser name).

      To add a browser to the list, first open the following page https://test.bigbluebutton.org/html5client/useragent with the browser, which will print its useragent string. For example, with the Vivaldi browser you might see

      Next, to add this as a supported browser, append to settings.yml

      save the updated settings.yml file, and then restart your BigBlueButton server with sudo bbb-conf —restart . Note any browser you add must support WebRTC libraries (not all do), so be sure to check it first with https://test.webrtc.org/.

      Tomcat shows “Cannot assign requested address on startup”

      If your server has multiple IP addresses, Tomcat might not pick the right address to bind. This could throw an error on installation when tomcat is attempting to install.

      Check /var/log/tomcat7/catalina.out for the following error

      If you see this, first ensure that there isn’t another copy of tomcat running by doing ps -aef | grep tomcat7 . If you do see another copy running, try killing it and then restarting tomcat.

      If you still see the same error in catalina.out , then /etc/tomcat7/server.xml and change

      Restart tomcat7 again and it should start normally.

      nginx not running

      The common reasons for nginx not running are inability to bind to port 80 and configuration errors. To check if port 80 is already in use, use

      to see if any process is currently bound to port 80. If so, check to see if another web server is installed. If so, then stop the web server and try to restart nginx. One of the server requirements before you install BigBlueButton is that port 80 is not in use by another application (such as Apache). For details on why this is a requirements, see We recommend running BigBlueButton on port 80.

      If port 80 is free, check if your nginx configuration file has errors. Try a restart of nginx

      and look for the output of

      If you see [ Fail ] , then your nginx configuration files might have a syntax error. Check the syntax of the nginx configuration files using the command

      and see if it reports any errors. You can also check the error.log file for nginx to see what errors it gives on startup

      “Welcome to nginx”

      During installation of BigBlueButton the packaging scripts attempt to assign the correct IP address during setup. However, if the IP address changes (such as when rebooting a VM), or the first IP address was not the correct IP address for the server, you may see a “Welcome to nginx” page.

      To reconfigure the BigBlueButton to use the correct IP address or hostname, see BigBlueButton does not load.

      bbb-web

      404 Error when loading the client

      BigBlueButton 2.2 requires Java 8 as the default Java. Recently, some Ubuntu 16.04 distributions have switched the default version of Java to Java 9 (or later).

      Use java -version to check that the default version of 1.8.0 .

      If not, do the following

      Run java -version and confirm it now shows the default as 1.8.0 , and then restart BigBlueButton with sudo bbb-conf —restart

      Blank presentation area on create or upload

      If you join a meeting and the default presentation is not visible or your uploaded presentation doesn’t display, then this is most likely due to a permissions error. To solve this, ensure that /var/bigbluebutton/ is owned by bigbluebutton rather than root or any other account. See this issue for more explanation.

      Unable to create presentation

      If you see the following error in /var/log/bigbluebutton/bbb-web.log

      use the command mount to check that the /tmp director does not have noexec permissions (which would prevent executables from running in the /tmp directory). If you see noexec for /tmp , you need to remount the directory with permissions that enable processes (such as the slide conversion) to execute in the /tmp directory.

      Too many open files

      On servers with greater than 8 CPU cores, bbb-web log ( /var/log/bigbluebutton/bbb-web.log ) may throw an error of Too many open files

      To resolve, create an override file that increases the number of open files for bbb-web

      bbb-web takes a long time to startup

      bbb-web relies on the SecureRandom class (which uses available entropy) to provide random values for its session IDs. On a virtualized server, however, the available entropy can run low and cause bbb-web to block for a long period before it finishes it’s startup sequence (see Slow startup of tomcat).

      To provide bbb-web with more entropy, you can install haveged

      Error installing bbb-web

      If you get the following error during upgrade to BigBlueButton

      Then first uninstall bbb-client

      and try installing BigBlueButton again.

      Other errors

      Root partition too small

      If the root partition on your BigBlueButton server is too small (for disk space requirements see Before you install), we recommend moving the following directories to an external partition with sufficient disk space.

      BigBlueButton processing and storage of recordings:

      Location of all media directories on disk available here.

      To make the move, we’ll first stop BigBlueButton, then move the above directories to a new location on the external partition, create symbolic links from the original locations to the new locations, and restart BigBlueButton.

      In the following example, the external partition is mounted on /mnt .

      BigBlueButton does not load

      If your has changed it’s network connection (such as on reboot), you can clean most of BigBlueButton’s configuration files with the following steps.

      For more information see bbb-conf options.

      Running within an LXD Container

      LXD is a very powerful container system for Ubuntu lets you run full Ubuntu 16.04 servers within a container. Because you can easily clone and snapshot LXD containers, they are ideal for development and testing of BigBlueButton.

      However, if you install BigBlueButton within an LXD container, you will get the following error from sudo bbb-conf —check

      You’ll also get an error from starting FreeSWITCH with bbb-conf —restart . When you try systemctl status freeswitch.service , you’ll see an error with SETSCHEDULER.

      This error occurs because the default systemd unit script for FreeSWITCH tries to run with permissions not available to the LXD container. To run FreeSWITCH within an LXD container, edit /lib/systemd/system/freeswitch.service and replace with the following

      Then enter the following commands to load the new unit file and restart BigBlueButton.

      You can run BigBlueButton within a LXD container.

      Unable to connect to redis

      The packages bbb-apps-akka , bbb-fsesl-akka , and bbb-transcode-akka are packaged by sbt, but they need to have redis-server running before they startup. If sudo bbb-conf —debug shows redis connection errors

      you can add overrides for these three packages to ensure they start after redis.server. Run the following script.

      The script bbb-install now creates these overrides by default.

      500 Internal Server Error

      It is most likely an error on GreenLight. Check the log file according to Troubleshooting Greenlight.

      If this error occurrs on just a small number of PCs accessing a BigBlueButton server within a LAN through a proxy server and you find the description “Error::Unsafe Host Error (x.x.x.x is not a safe host)” (where x.x.x.x is an IP address) in the log file, check if the “Don’t use the proxy server for local (intranet) addresses” (in the Windows proxy setting) is ticked.

      Legacy errors

      Conference not found errors

      The command sudo bbb-conf —debug searches through the red5, tomcat7, and nginx logs looking for errors and exceptions. However, the messages such as

      Источник

      Источник

      The most frequent user complains about BigBlueButton are WebRTC issues: 1007 and 1020.

      I am going to tell you how to fix this complain for good. No more 1007 or 1020!

      Running the BigBlueButton client requires a wide range of UDP ports to be available for WebRTC communication.

      However, in some network restricted sites, such as those behind NAT or a corporate firewall that restricts UDP connections, users may be unable to make outgoing UDP connections to your BigBlueButton server. These are the users who get 1007 and 1020 errors.

      By setting up a separate TURN server, you can allow users to have the TURN server (connected via port 443) proxy their UDP-based WebRTC media (audio, webcam, and screen share) to the BigBlueButton server.

      We recommend Ubuntu 20.04 as it has a newer version of Coturn than Ubuntu 16.04.

      The server does not need to be very powerful as it will only relay communications from the BigBlueButton client to the BigBlueButton server when necessary. A dual core server virtual server should be sufficient for a dozen BigBlueButton servers.

      Installing a Turn server is super simple with bbb-install.sh, which installs and configures the Coturn server that acts as both Stun and Turn server.

      wget -qO- https://ubuntu.bigbluebutton.org/bbb-install.sh | bash -s -- -c : -e

      With this straightforward installation and some optimizations (LimitNOFILE=1048576), you will be able to get rid of 1007/1020 errors for almost 100%.

      Don’t forget to test whether your Turn server is working:

      1. You can force using the TURN on Firefox browser.
      2. Open a Firefox tab and type about:config. Search for media.peerconnection.ice.relay_only.
      3. Set it to true. At this moment Firefox only use TURN relay.
      4. Now join a BigBlueButton session for this Firefox browser to see Turn server in action.
      5. In another tab on Firefox, type about:webrtc to see the status of webrtc.
      6. Click on show details to see the url of stun/turn server being used with success message.

      In some cases you may still get 1007/1020 complains!

      That happens when your Turn server fails!

      Either Turn server is down or is overwhelmed by hundreds of simultaneous user requests.

      For high-availability of your Turn server, use dns round robin routing on AWS Route 53.

      1. First install two Turn servers as directed above with two ‘A’ records in Route 53: turn1.higheredlab.com and turn2.higheredlab.com. Ensure that you setup Turn servers in the region that is closer to your users to avoid network latency.
      2. Second, create another ‘A’ record in Route 53, for example turn.higheredlab.com, that does weightage routing to the two Turn Servers.
      3. Add Health Check so that if one Turn server goes down, requests are directed to the other Turn server.
      4. Setup SNS notification so that you get an email alert right away that one of your Turn server is down.

      I hope this helps in conducting better online classes on BigBlueButton!

      I have installed bbb on my intranet behind a NAT/Firewall and i use Chrome browser. It’s work fine in https mode with any station or Smartphone i use in local mode.
      When i try with a station in «external» mode (internet) i get «ICE error 1007». I saw in documentation that i need to install a Turn server and i had do it using following this procedure https://docs.bigbluebutton.org/2.2/setup-turn-server.html but error 1007 is staying. Is somebody could help me? See below my check
      BigBlueButton Server 2.2.5 (1848)
      Kernel version: 4.15.0-96-generic
      Distribution: Ubuntu 16.04.6 LTS (64-bit)
      Memory: 32925 MB
      CPU cores: 16

      /usr/share/bbb-web/WEB-INF/classes/bigbluebutton.properties (bbb-web)
      bigbluebutton.web.serverURL: https://mydomain.com
      defaultGuestPolicy: ALWAYS_ACCEPT
      svgImagesRequired: true

      /etc/nginx/sites-available/bigbluebutton (nginx)
      server name: mydomain.com
      port: 80, [::]:80
      port: 443 ssl
      bbb-client dir: /var/www/bigbluebutton

      /var/www/bigbluebutton/client/conf/config.xml (bbb-client)
      Port test (tunnel): rtmp://mydomain.com
      red5: mydomain.com
      useWebrtcIfAvailable: true

      /opt/freeswitch/etc/freeswitch/vars.xml (FreeSWITCH)
      local_ip_v4: 192.168.0.16
      external_rtp_ip: MON_IP_PUBLIC
      external_sip_ip: MON_IP_PUBLIC

      /opt/freeswitch/etc/freeswitch/sip_profiles/external.xml (FreeSWITCH)
      ext-rtp-ip: $${external_rtp_ip}
      ext-sip-ip: $${external_sip_ip}
      ws-binding: :5066
      wss-binding: :7443

      /usr/local/bigbluebutton/core/scripts/bigbluebutton.yml (record and playback)
      playback_host: mydomain.com
      playback_protocol: https
      ffmpeg: 4.2.2-1bbb1~ubuntu16.04

      /etc/bigbluebutton/nginx/sip.nginx (sip.nginx)
      proxy_pass: MON_IP_PUBLIC

      /usr/local/bigbluebutton/bbb-webrtc-sfu/config/default.yml (Kurento SFU)
      kurento.ip: 192.168.0.16
      kurento.url: ws://127.0.0.1:8888/kurento
      localIpAddress: 192.168.0.16
      recordScreenSharing: true
      recordWebcams: true
      codec_video_main: VP8
      codec_video_content: VP8

      /usr/share/meteor/bundle/programs/server/assets/app/config/settings.yml (HTML5 client)
      build: 874
      kurentoUrl: wss://mydomain.com/bbb-webrtc-sfu
      enableListenOnly: true

      Potential problems described below

      IP does not match:

      IP from ifconfig: 192.168.0.16

      /etc/nginx/sites-available/bigbluebutton: mydomain.com

      Warning: API URL IPs do not match host:

      IP from ifconfig: 192.168.0.16

      /var/lib/tomcat7/demo/bbb_api_conf.jsp: mydomain.com

      Warning: The setting of MON_IP_PUBLIC for proxy_pass in

      /etc/bigbluebutton/nginx/sip.nginx

      does not match the local IP address (192.168.0.16).

      (This is OK if you’ve manually changed the values)

      Warning: The API demos are installed and accessible from:

      https://mydomain.com

      and

      https://mydomain.com/demo/demo1.jsp

      These API demos allow anyone to access your server without authentication

      to create/manage meetings and recordings. They are for testing purposes only.

      If you are running a production system, remove them by running:

      apt-get purge bbb-demo

      Rgds
      Chris

      1007: Verify that any firewalls are not blocking UDP traffic, per Bongo’s article about firewall ports. If you’re using a VPN, try connecting to the meeting without it. Then, refresh the browser and try again.

      Then, How do I fix Genshin download error? Right-click on the Genshin Impact executable file, then select Properties. Click on the Compatibility tab, and tick the box that says Run this program as an administrator. Restart the game.

      Why does my Genshin Impact Download keep failing? One of the first things to try is to update your game drivers and make sure these are working properly. If your drivers are not fully up to date, then they might not be communicating properly with your updated game. So if you have an NVIDIA graphics card, you can go here. Or if you have an AMD graphics card, it’s here.

      Similarly, What is error code Genshin Impact?

      The Genshin Impact Error Code 9107 and 9908 are error codes that you don’t need to worry about. They occur when a new update for the game is available and the servers are down due to that. There are a number of other error codes that occur due to the same reason.

      What does ICE error mean?

      ICE Error 1007 means either your firewall is preventing the connection for your virtual classroom or NAT is blocking the connection. If you are using a VPN to connect to the network try turning it off and then connecting if that fails check for firewall settings for UDP traffic.

      What is an ice error? When a call is connected using the Twilio Voice JavaScript SDK (formerly « Twilio Client »), the client and server exchange periodic messages verifying that the call is alive. If these message exchanges fail, it could indicate a problem with the connection to Twilio.

      How do you fix an ice connection? ICE Checking Discord – What it means and how to fix this‍

      1. Restart everything.
      2. Check for internet outages.
      3. Check if your firewall/ antivirus is the cause of ICE checking on Discord.
      4. Use a VPN with an UDP.
      5. Check your network admin.
      6. Change the voice region.
      7. Contact Discord support.

      How do I install BigBlueButton? Grab a cup of your favorite beverage and let’s begin!

      1. Update your server. First, make sure your server is up-to-date with latest packages and security updates. …
      2. Install apt-get key for BigBlueButton repository. …
      3. Back up custom configurations. …
      4. Install BigBlueButton. …
      5. Install API demos (optional) …
      6. Restart your server. …
      7. Next steps.

      What is ice twilio?

      Interactive Connectivity Establishment (ICE) is a blanket standard that describes how to coordinate STUN and TURN to make a connection between hosts. Twilio’s Network Traversal Service implements STUN and TURN for ICE-compatible clients, such as browsers supporting the WebRTC standard.

      How do I fix big Bluebutton? —-Verify that the BigBlueButton meeting link has been granted permission to use the microphone or camera by the browser. If not, you must grant permission and re-join the audio or share the camera. —- If it still doesn’t work, try switching browsers, either from Chrome to Firefox or from Firefox to Chrome.

      What is incompatible SDP?

      This error apparently means that there is an issue with webrtc querying your ip address. If you have uBlock origin or Privacy Badger, check there settings and make sure the option to block sharing your local ip is not set.

      What does ice checking mean? ICE checking means your network is blocking Discord from connecting to voice server.

      Is BigBlueButton better than zoom?

      BigBlueButton and Zoom both meet the requirements of our reviewers at a comparable rate. When comparing quality of ongoing product support, BigBlueButton and Zoom provide similar levels of assistance. For feature updates and roadmaps, our reviewers preferred the direction of BigBlueButton over Zoom.

      Which is better Jitsi or BigBlueButton?

      BigBlueButton is significantly superior to Jitsi when it comes to the integration with the online learning platform.

      Do you have to pay for BigBlueButton? BigBlueButton is open-source software, meaning it is free for both personal and commercial use.

      What is TURN STUN? TURN is a relay — both clients send data to the TURN server, which forwards it to the other client. STUN is not a relay — the STUN server helps to « make the connection » between the clients (by discovering and exchanging their external host:port pairs), after which they send data to each other directly.

      What is a STUN server used for?

      The STUN server enables clients to find out their public IP address, NAT type, and the Internet-facing port associated by the NAT device with a particular local port. This information is used to set up a UDP communication session between the client and the VoIP provider to establish a call.

      What is TURN SIP? TURN is an extension for STUN-bis protocol to facilitate NAT traversal when one or both endpoints are behind NAT. With TURN, media traffic for the session will have to go to a relay server.

      Can’t create a web socket connection?

      1002: Could not make a WebSocket connection – The initial WebSocket connection was unsuccessful. Possible Causes: Firewall blocking ws protocol. Server is down or improperly configured.

      Why can’t I see video on BigBlueButton? This is caused by your browser’s security settings blocking access to the tool. You have to go through the same steps that you go through when accessing videos or other external content, as the browser may be blocking it so that it looks like a blank screen.

      How do you use BigBlueButton?

      How do you fix ice Error 1004? Steps to reproduce the behavior:

      1. Join with microphone a couple of times.
      2. Sometimes you get 1004 (especially if you don’t use a different STUN server from bbb’s default)
      3. If you try joining again (one or a couple of times again) you will sucessfully connect to audio.

      What is RTC disconnected?

      What does “RTC Connecting” mean? First thing first, a little info about the “RTC Connecting” error. As Discord relies on the WebRTC protocol to function properly, the “RTC Connecting” error is then a network-related problem. It simply means Discord is experiencing issues when trying to connect to a remote server.

      How do you fix RTC Discord?

      1. Fix 1: Restart Discord.
      2. Fix 2: Restart your PC/laptop.
      3. Fix 3: Check Network Settings.
      4. Fix 4: Update Discord Client.
      5. Fix 5: Choose a different server region.
      6. Fix 6: Use VPN.
      7. Fix 7: Disable IPv6.
      8. Fix 8: Disable Quality of Service (QoS) on Discord.

      How do you fix no route Discord?

      Once done, proceed with the solutions below.

      1. Method 1: Restart Modem/Router And Computer. …
      2. Method 2: Uninstall 3rd Party Firewall or Whitelist Discord (If Applicable) …
      3. Method 5: Change the Server’s Voice Region. …
      4. Method 6: Disable QoS From Voice & Video Settings. …
      5. Method 7: Flushing the DNS Setting.

      Who uses BigBlueButton? As a result, BigBlueButton has been deeply embedded into major learning management systems used world-wide. It has been adopted by Canvas, Moodle Cloud, Sakai, Jenzabar, D2L, and Schoology as their default virtual classroom. Together, these vendors comprise more than 75% of the world-wide market for LMS systems.

      How many users can Bigblue handle? How many simultaneous users can BigBlueButton support. As a rule of thumb, if your BigBlueButton server meets the minimum requirements, the server should be able to support 150 simultaneous users, such as 3 simultaneous sessions of 50 users, 6 x 25, etc.

      What is Zoom BigBlueButton?

      The primary purpose of Zoom is online meetings, whereas the primary purpose of BigBlueButton is online teaching. Hence BigBlueButton focuses on providing features for students engagement during the class and analytics from the classes to assess and evaluate students.

      Don’t forget to share this post !

      Источник

      Some MynaParrot BBB users reported receiving this ICE 1007 error message when attempting to join the meeting.

      Then we need to figure out why this is happening and figure out how to fix it. You may suspect that it is due to bigbluebutton server or html5 client issues, or that it is related to IP address or port 80.

      BigBlueButton is a web conferencing system that is free and open source. It is web-based, so you must use a browser to participate in the meeting. The advantage is that users do not need to download and install any applications on their devices. However, it will necessitate the user configuring some browser settings, particularly the first time. However, while it is generally acceptable and simple to use, you may encounter some issues.

      Today we are going to address this common issue for the BigBlueButton user.

      ice 1007 reasons

      For a short answer, the error caused by a firewall. 

      WebRTC errors

      1007: ICE negotiation failed — The browser and FreeSWITCH try to negotiate ports to use to stream the media, and that negotiation failed. Possible Causes:

      NAT is blocking the connection

      The firewall is blocking the UDP connection/ports

      WebRTC offers very high-quality audio. However, the user’s network settings (or firewall) may not allow WebRTC to connect (or keep connected).

      ice 1007 Solutions

      First and foremost, as a developer, you must examine your BigBlueButton server configuration. If your server does not have a TURN server configuration, your users will encounter difficulties if they access from behind a firewall. If you configure the TURN server, you should see better results.

      You can find instructions on how to set up the TURN server in this official BigBlueButton Development Doc.

      https://docs.bigbluebutton.org/admin/setup-turn-server.html

      If you are confident that you have correctly installed and configured the TURN server. However, the user may still encounter this issue. What are other options? From our experience, the most practical way to solve it from the user’s perspective is to try the following methods:

      • Try again a few times, and it may resolve itself.
      • Restart your computer or mobile device if possible.
      • Try a different browser or update your browser to the most recent version.
      • If possible, switch to a different internet provider.
      • Experiment with different devices.

      The cause is sometimes a problem caused by unknown factors. It takes time to detect or solve it; however, as a user, you may only have a few minutes to resolve this issue because you need to enroll in a course. As a result, try those suggestions as soon as possible and see if they work. According to our experience, if your BigBlueButton server is correctly configured, then try those solutions from the user’s end, and the problem will be resolved.

      If you still aren’t able to solve the problem by doing these. Please contact us, and we will assist you in resolving this issue as soon as possible. If you don’t have an account, try it free from here: https://mynaparrot.com/en/try-it-for-free

      You can integrate with your Moodle, WordPress, Chamilo, or other LMS in minutes. After that, you can test it to see if the BigBlueButton ICE 1007 error messages continue to appear.

      Check our BigBlueButton services & BigBlueButton Hosting.

      Источник

      I have installed bbb on my intranet behind a NAT/Firewall and i use Chrome browser. It’s work fine in https mode with any station or Smartphone i use in local mode.
      When i try with a station in «external» mode (internet) i get «ICE error 1007». I saw in documentation that i need to install a Turn server and i had do it using following this procedure https://docs.bigbluebutton.org/2.2/setup-turn-server.html but error 1007 is staying. Is somebody could help me? See below my check
      BigBlueButton Server 2.2.5 (1848)
      Kernel version: 4.15.0-96-generic
      Distribution: Ubuntu 16.04.6 LTS (64-bit)
      Memory: 32925 MB
      CPU cores: 16

      /usr/share/bbb-web/WEB-INF/classes/bigbluebutton.properties (bbb-web)
      bigbluebutton.web.serverURL: https://mydomain.com
      defaultGuestPolicy: ALWAYS_ACCEPT
      svgImagesRequired: true

      /etc/nginx/sites-available/bigbluebutton (nginx)
      server name: mydomain.com
      port: 80, [::]:80
      port: 443 ssl
      bbb-client dir: /var/www/bigbluebutton

      /var/www/bigbluebutton/client/conf/config.xml (bbb-client)
      Port test (tunnel): rtmp://mydomain.com
      red5: mydomain.com
      useWebrtcIfAvailable: true

      /opt/freeswitch/etc/freeswitch/vars.xml (FreeSWITCH)
      local_ip_v4: 192.168.0.16
      external_rtp_ip: MON_IP_PUBLIC
      external_sip_ip: MON_IP_PUBLIC

      /opt/freeswitch/etc/freeswitch/sip_profiles/external.xml (FreeSWITCH)
      ext-rtp-ip: $${external_rtp_ip}
      ext-sip-ip: $${external_sip_ip}
      ws-binding: :5066
      wss-binding: :7443

      /usr/local/bigbluebutton/core/scripts/bigbluebutton.yml (record and playback)
      playback_host: mydomain.com
      playback_protocol: https
      ffmpeg: 4.2.2-1bbb1~ubuntu16.04

      /etc/bigbluebutton/nginx/sip.nginx (sip.nginx)
      proxy_pass: MON_IP_PUBLIC

      /usr/local/bigbluebutton/bbb-webrtc-sfu/config/default.yml (Kurento SFU)
      kurento.ip: 192.168.0.16
      kurento.url: ws://127.0.0.1:8888/kurento
      localIpAddress: 192.168.0.16
      recordScreenSharing: true
      recordWebcams: true
      codec_video_main: VP8
      codec_video_content: VP8

      /usr/share/meteor/bundle/programs/server/assets/app/config/settings.yml (HTML5 client)
      build: 874
      kurentoUrl: wss://mydomain.com/bbb-webrtc-sfu
      enableListenOnly: true

      Potential problems described below

      IP does not match:

      IP from ifconfig: 192.168.0.16

      /etc/nginx/sites-available/bigbluebutton: mydomain.com

      Warning: API URL IPs do not match host:

      IP from ifconfig: 192.168.0.16

      /var/lib/tomcat7/demo/bbb_api_conf.jsp: mydomain.com

      Warning: The setting of MON_IP_PUBLIC for proxy_pass in

      /etc/bigbluebutton/nginx/sip.nginx

      does not match the local IP address (192.168.0.16).

      (This is OK if you’ve manually changed the values)

      Warning: The API demos are installed and accessible from:

      https://mydomain.com

      and

      https://mydomain.com/demo/demo1.jsp

      These API demos allow anyone to access your server without authentication

      to create/manage meetings and recordings. They are for testing purposes only.

      If you are running a production system, remove them by running:

      apt-get purge bbb-demo

      Rgds
      Chris

      Источник

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