nethserver-janus

This package configure Janus Gateway https://github.com/meetecho/janus-gateway

Start Janus Gateway at boot

To start Janus Gateway and enable it at boot, execute:

config setprop janus-gateway status enabled
signal-event nethserver-janus-update

NAT modes

Janus-gateway can operate in three different NAT mode:

  • STUN (default)
  • ICE
  • 1:1 NAT

There are 4 prop under janus-gateway key to configure NAT mode and options:

  • NatMode <stun|ice|1:1>
  • StunServer is the STUN server to use. Default is stun1.l.google.com. Ignored if mode isn’t stun
  • StunPort is the STUN server port. Default is 19302. Ignored if mode isn’t stun
  • PublicIP is the public IP address of the server that runs janus-gateway . Ignored if mode isn’t 1:1

For configuring TURN, create a template custom

STUN and ICE enforced interfaces

You can choose which interface should be used for the ICE candidates gathering. In default configuration Janus try to use all interfaces, except ‘vmnet*’, that is VMware interface which is known to cause problems, ‘tun*’ and ‘tap*’ interfaces for VPNs, ‘virb*’ for KVM and ‘vb-*’ for NethServer AD container. You can modify this behavior by explicit list interfaces to use or by listing interfaces to exclude. You can configure one of those two props:

  • ICEEnforceList comma separated list of interfaces to use for ICE gathering. For instances “e0,e1”.
  • ICEIgnoreList comma separated list of interfaces to exclude from ICE gathering. Janus will use all interfaces except those. For instance ‘e3,vmnet,10.0.0’.

Disable plugins

All plugins are enabled by default. To disable some of them execute:

config setprop janus-gateway DisabledPlugins "<PLUGINS_NAMES_SEPARATED_BY_COMMAS>"
signal-event nethserver-janus-update

Example:

config setprop janus-gateway DisabledPlugins "libjanus_voicemail.so,libjanus_recordplay.so"
signal-event nethserver-janus-update

To re-enable them:

config setprop janus-gateway DisabledPlugins ""
signal-event nethserver-janus-update

Debug problems with Admin Api

The Janus Admin Api are used to debug problems (e.g. ssl, ice, …).

nethserver-janus automatically enables Admin Api on HTTP localhost on port 7088.

To use it:

  1. make an ssh tunnel:

    ssh IP -L 7088:localhost:7088

  1. extract the Admin Api secret:

    grep admin_secret /opt/janus/etc/janus/janus.jcfg | cut -d ' ' -f 3

  2. Follow the official documentation on how to use admin api: https://janus.conf.meetecho.com/docs/admin.html

Note: here is an example on how to use it with Node.js: https://gist.github.com/alepolidori/720e47448e82b99ef3495a1849773ecc