Port 3389 - TCP UDP Ports

3389 port number used for Port 3389 is used for Windows Remote Desktop and Remote Assistance connections (RDP), as well as some security vulnerabilities and applications. Learn more about the protocol, service, threats, and references for port 3389..

telnet command 3389  If you don't want to use 3389 externally, open a different port externally, but point it to 3389 on the IP address of the machine you want RDC on. This is helpful for routing many systems with RDC.

3389 com  The default port for Remote Desktop is 3389. I would like to change the port to another port in order to thwart a brute force attack that is occuring on my machine. What port number could I use? I