Glossary

TURN

Traversal Using Relays around NAT

A protocol and server that relays media and data for WebRTC peers that cannot reach each other directly; a TURN server is an outbound proxy, so it must authenticate users and refuse to relay to internal addresses.

Defined in: RFC 8656

Covered in

Guide

Secure WebRTC signaling, TURN relays and media servers

WebRTC encrypts media, but signaling decides whose keys you trust and TURN relays wherever it is allowed. Authorize every signaling message, mint short-lived TURN credentials, deny internal addresses and harden media servers.