How to change RDP Port on TS

 Terminal services used port 3389 by default. It is well known port TS uses so there can be a chance that it can be a target for attack by network intruders.


Even though network attackers can find the port that is in use, changing TS port from 3389 can make it more difficult to attack a TS server.


TS port can be changed from the registry


HKEY_LOCAL_MACHINE\System\CurrentControlSet\Control\Terminal Server\WinStations\RDP-Tcp


Value: Port Number


Data: 3389 in decimal or d3d in hex


We can use any ephemeral port ranging from 1024-4999 by default. After making the registry changes restart the terminal services


To check the port on which terminal server is listening run nestat –aon from command prompt.



++ Remote Desktop Client

      Launch mstsc.exe. In the computer field specify the <TS name>:<port number> e.g. If server name is termserver1 and port is 3900 then we need to put termserver1:3900

++Remote Desktop We Connection


Make connection to web server which host the remote desktop web connection using http://<server name>/ts



Click on the Remote Desktop icon. In Connect to: field specify the <TS name>:<port number>



++Remote Applications:


To configure Remote Applications, accessible through TS Web Access or a custom .rdp file, to use custom Terminal Server port, you must configure custom RDP Settings  in  TS Remote App Manager MMC snap-in.


RemoteApp Deployment Settings à Terminal Server à RDP Port



Specify the custom port in RDP port field.

Comments (5)

  1. Anonymous says:

    In our environment , we have been doing this on all of our servers. I followed these steps on Server 2008 and it seem to doesn’t work… even after a reboot.

  2. Anonymous says:

    I forgot to create a new exception for the changed RDP port.

  3. After making the changes which port terminal server is listening??

    Is it still showing 3389 in nestat –aon output?

    I would appreciate if you could provide more details 🙂

  4. Badhusha says:

    after finish this config. restart the computer

    it is working with me.

  5. B-o-B De Mars says:

    This is correct & works.  Thanks Buddy!!!