TURN Server for Relayed Connections
Explore TURN (Traversal Using Relays around NAT) servers and their role in relaying media when direct peer-to-peer connection is not possible.
Understanding TURN: The Last Resort
When direct connections between peers fail, TURN (Traversal Using Relays around NAT) servers step in. They act as a relay, forwarding all data between the peers.
Think of it as a middleman. Instead of talking directly, peers send their data to the TURN server, which then forwards it to the other peer.
Why STUN Isn't Always Enough
In the previous lessons, we learned about STUN. STUN helps peers discover their public IP and port, which works for most NAT types.
However, some strict network environments, like symmetric NATs or corporate firewalls, can block direct connections even after STUN. This is when TURN becomes essential.
All lessons in this course
- NAT and Firewall Challenges
- STUN Server Functionality Explained
- TURN Server for Relayed Connections
- Deploying and Securing Your Own TURN Server