Setting up a TURN or STUN server

Ring can be configured to use TURN or STUN servers (RFC5766) to establish a connection between two peers.

In this guide, we will setup a coturn server. There are other TURN/STUN server implementations available under a free license. See TurnServer and Restund.

1. Installing

COTURN is available in most Linux distributions. On Debian, install it with the following command:

apt-get install coturn

2. Configuring

Here is a basic turnserver.conf file:

listening-port=10000
listening-ip=0.0.0.0
min-port=10000
max-port=30000
lt-cred-mech
realm=sfl
no-stun

3. Creating users on your TURN server

To create users on your TURN server, use the turnadmin binary.

turnadmin -a -u bob -p secretpassword -r sfl

4. Launching the TURN server

turnserver -c turnserver.conf

5. Configuring Ring to authenticate to the TURN server

You may configure Ring to use your TURN server from the advanced tab your account settings:

Field	Value	Example
server url	host and port of your server	0.0.0.0:10000
username	username	bob
password	password	secretpassword
realm	realm	sfl