RustDesk requires specific ports to be open for the relay and signaling servers to function correctly. Configure your firewall to allow: 21115, 21116, 21117, 21118, 21119 UDP: 21116

Before touching the license key, ensure your infrastructure is ready.

: While basic functionality can be set up quickly, users have noted that the documentation can be "minimal" or "all over the place," particularly when trying to enable advanced features like HTTPS or WebUI.

Open your browser and navigate to http:// :21114 . Login with the default credentials: admin Password: test1234

According to RustDesk Official Documentation , the Pro license is tied directly to your hbbs (ID server) machine. RustDesk Pricing - Self-Hosted Remote Desktop Server Plans

Look for a line like: