JANUS(1)                    General Commands Manual                   JANUS(1)

       janus - WebRTC server/gateway

       janus [options]

       janus is a WebRTC server/gateway developed by Meetecho conceived to be
       a general purpose one. As such, it doesn't provide any functionality
       per se other than implementing the means to set up a WebRTC media
       communication with a browser or application, exchanging JSON messages
       with it over different transports, and relaying RTP/RTCP and messages
       between clients and the server-side application logic they're attached
       to. Any specific feature/application is provided by server side
       plugins, that browsers can then contact via the server to take
       advantage of the functionality they provide. Example of such plugins
       can be implementations of applications like echo tests, conference
       bridges, media recorders, SIP gateways and the like.

       The reason for this is simple: we wanted something that would have a
       small footprint (hence a C implementation) and that we could only equip
       with what was really needed (hence pluggable modules). That is,
       something that would allow us to deploy either a full-fledged WebRTC
       server on the cloud, or a small nettop/box to handle a specific use

       -h, --help
              Print help and exit

       -V, --version
              Print version and exit

       -b, --daemon
              Launch Janus in background as a daemon (default=off)

       -p, --pid-file=path
              Open the specified PID file when starting Janus (default=none)

       -N, --disable-stdout
              Disable stdout based logging (default=off)

       -L, --log-file=path
              Log to the specified file (default=stdout only)

       -i, --interface=ipaddress
              Interface to use (will be the public IP)

       -P, --plugins-folder=path
              Plugins folder (default=./plugins)

       -C, --config=filename
              Configuration file to use

       -F, --configs-folder=path
              Configuration files folder (default=./conf)

       -c, --cert-pem=filename
              DTLS certificate

       -k, --cert-key=filename
              DTLS certificate key

       -K, --cert-pwd=text
              DTLS certificate key passphrase (if needed)

       -S, --stun-server=ip:port
              STUN server(:port) to use, if needed (e.g., Janus behind NAT,

       -1, --nat-1-1=ip
              Public IP to put in all host candidates, assuming a 1:1 NAT is
              in place (e.g., Amazon EC2 instances, default=none)

       -E, --ice-enforce-list=list
              Comma-separated list of the only interfaces to use for ICE
              gathering; partial strings are supported (e.g., eth0 or
              eno1,wlan0, default=none)

       -X, --ice-ignore-list=list
              Comma-separated list of interfaces or IP addresses to ignore for
              ICE gathering; partial strings are supported (e.g.,
              vmnet8,, or vmnet,192.168., default=vmnet)

       -6, --ipv6-candidates
              Whether to enable IPv6 candidates or not (experimental)

       -l, --libnice-debug
              Whether to enable libnice debugging or not (default=off)

       -f, --full-trickle
              Do full-trickle instead of half-trickle (default=off)

       -I, --ice-lite
              Whether to enable the ICE Lite mode or not (default=off)

       -T, --ice-tcp
              Whether to enable ICE-TCP or not (warning: only works with ICE
              Lite) (default=off)

       -R, --rfc-4588
              Whether to enable RFC4588 retransmissions support or not

       -q, --max-nack-queue=number
              Maximum size of the NACK queue per user for retransmissions

       -t, --no-media-timer=number
              Time (in s) that should pass with no media (audio or video)
              being received before Janus notifies you about this

       -r, --rtp-port-range=min-max
              Port range to use for RTP/RTCP

       -n, --server-name=name
              Public name of this Janus instance (default=MyJanusInstance)

       -s, --session-timeout=number
              Session timeout value, in seconds (default=60)

       -m, --reclaim-session-timeout=number
              Reclaim session timeout value, in seconds (default=0)

       -d, --debug-level=1-7
              Debug/logging level (0=disable debugging, 7=maximum debug level;

       -D, --debug-timestamps
              Enable debug/logging timestamps (default=off)

       -o, --disable-colors
              Disable color in the logging (default=off)

       -M, --debug-locks
              Enable debugging of locks/mutexes (very verbose! default=off)

       -a, --apisecret=randomstring
              API secret all requests need to pass in order to be accepted by
              Janus (useful when wrapping Janus API requests in a server, none
              by default)

       -A, --token-auth
              Enable token-based authentication for all requests (default=off)

       -e, --event-handlers
              Enable event handlers (default=off)

       janus - Launch Janus with all options from configurations files

       janus -b -L /tmp/januslog - Launch Janus as a daemon and log to the
       specified file

       janus -6 - Launch Janus with IPv6 support enabled

       janus -f -R - Launch Janus with full-trickle and RFC4588
       retransmissions enabled

       If you think you found a bug or want to contribute a feature, you can
       issue or a pull request on https://github.com/meetecho/janus-

       Anyway, before doing that make sure you read the documentation at
       http://janus.conf.meetecho.com/docs/ and that it has not been discussed
       already at https://groups.google.com/forum/#!forum/meetecho-janus. We
       only use Github for code issues, and NOT for configuration or usage
       issues: use the group for that.

       https://github.com/meetecho/janus-gateway - Official repository

       https://janus.conf.meetecho.com - Demos and documentation

       https://groups.google.com/forum/#!forum/meetecho-janus - Community

       http://www.meetecho.com/blog/ - Tutorials and blog posts on Janus

       Lorenzo Miniero (lorenzo@meetecho.com)