Port lookup
Port 3389 — TCP and UDP
Remote Desktop
Remote Desktop lets you see and control another computer's screen from your own, as if you were sitting at it. It runs over the Remote Desktop Protocol.
Why it matters
It is a common target for attackers, so it should not be open to the open internet.
Back to the port listLearn on the job
Ports are daily work on the network desk.
Look up a port here, then see it in real work on the network desk.