Do I need to tunnel both ports?

Expose RustDesk Server

Run your own RustDesk relay server and make it reachable from the internet.

RustDesk is an open-source remote desktop tool. Self-hosting the relay server gives you full control. A tunnel makes the relay publicly reachable.

Run the RustDesk server (hbbs on port 21117, hbbr on port 21119).

Run the Skytunnel command with port 21117 for the signaling server.

Configure RustDesk clients to use the Skytunnel public URL as the ID server.

For basic NAT traversal, tunneling port 21117 (hbbs) is usually sufficient. Tunnel 21119 (hbbr) if direct P2P fails.