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protocolAugust 15, 2026•8 min read•RTSPLink Engineering

STUN & TURN Server Configuration Guide for WebRTC NAT Traversal

Understand STUN binding requests, TURN relay allocation mechanisms, and coturn server deployment for peer connections.

#STUN#TURN#coturn#NAT Traversal#WebRTC
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#1STUN vs TURN Architecture

STUN enables endpoints to discover their public IP addresses and ports, while TURN acts as a fallback relay server when peer-to-peer connections are blocked by strict enterprise symmetric firewalls.

#2Deploying coturn in Docker

Run a production-ready coturn TURN server with long-term credentials:

Coturn Docker Command
docker run -d --name coturn --net=host \
  coturn/coturn \
  -n --log-file=stdout \
  --min-port=49152 --max-port=65535 \
  --realm=rtsplink.com \
  --user=demouser:demopass \
  --lt-cred-mech

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