stun

• DNS SRV _stun._udp.example.com
• 参考
  • iptable matching rule for STUN/TURN traffic
  • pion/turn
    • MIT, Golang STUN/TURN Client/Server
  • coturn/coturn
    • BSD-3, C TURN/STUN Server

port	desc
3478/udp	STUN
3478/tcp	STUN/TLS - de-multiplex
5349/tcp	TLS

Knonw STUN Server

• stun.stunprotocol.org:3478
• stun.zoiper.com
• stun.linphone.org
• 参考
  • voip-info stun

dig srv _stun._udp.stun.linphone.org
# _stun._udp.stun.linphone.org. 2527 IN   SRV     0 100 3478 stun.linphone.org.
# _stun._udp.stun.linphone.org. 2527 IN   SRV     10 100 3478 sip1.linphone.org.

stun.syncthing.net
stun.qq.com
stun.miwifi.com
stun.newtocktech.com

• 3478, 3479
• 5349, 5350