Recently I was capturing my Kurento WebRTC server packets and realized that it has been using this www.stunprotocol.org
domain for STUN requests. A tool named stuntman
can create a simple STUN server for you.
Just follow these on a Linux host:
1.sudo apt-get update
2.sudo apt-get install stuntman-server
3.stunserver --mode full --primaryinterface 100.101.102.103
(which the 100.101.102.103 should be replaced by your IP address)
4.Open This Link to test your STUN server.
e.g. STUN or TURN URI: stun:100.101.102.103:3478
Everything goes well for me.