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Coturn on Docker

Docker Repository on Quay

TURN server in a docker image, based on Coturn project

Usual parameters

Ports

  • listening port : usually 3478, either in tcp and udp
  • relay port : range of UDP relay endpoints, default is 49152-65535, see also command below

Volumes

Global configuration file resides in /etc/tunserver.conf and may be overwritten using volumes parameter

Command

Usual server arguments can be given through the command parameter, see turnserver man page for details :

  • --min-port: Lower bound of the UDP port range for relay endpoints allocation.
  • --max-port: Upper bound of the UDP port range for relay endpoints allocation.
  • -l, --log-file: Option to set the full path name of the log file. A usefull value is "-" for stdout.
  • -a, --lt-cred-mech: Use long-term credentials mechanism (this one you need for WebRTC usage).
  • -f, --fingerprint: Use fingerprints in the TURN messages. Usefull for WebRTC again.
  • -r, --realm: Realm to be used for all users. Must be used with long-term credentials mechanism.
  • -u, --user: Long-term security mechanism credentials user account, in the column-separated form username:key.
  • -X, --external-ip: TURN Server public/private address mapping, if the server is behind NAT. E.g. on an AWS instance.