Modify and Change Remote Desktop Listening Port
Remote Desktop is a multi-channel protocol that allows a user to remote access or connect to a computer which has enabled Remote Desktop server from another remote computer, through Local Area Network (LAN), Wide Area Network (WAN) or Internet by using Remote Desktop Connection client program. Microsoft Remote Desktop Protocol (RDP) server application can be found pre-installed on Windows Server 2003, Microsoft Windows XP Professional, Microsoft Windows XP Media Center Edition (MCE), Microsoft Windows XP Tablet PC 2005 Edition, Windows Vista Ultimate, and Windows Vista Business Edition. By default, Remote Desktop is using port 3389 TCP (UDP to stream audio redirection) as the listening port for any incoming Remote Desktop connections.
Although Remote Desktop server is using the default listening port of 3389 TCP and UDP, it’s possible to modify or change the listening port of Remote Desktop to another port. It’s especially useful when the remote computer is behind firewall which doesn’t allow incoming and outgoing connections other than standard ports (Windows Firewall in Windows XP Service Pack 2 (SP2) will automatically configure and open required ports when user enable Remote Desktop to allow Remote Desktop connections to the computer, if Don’t Allow Exceptions is not selected, else user will need to manually open the Remote Desktop port in Internet Connection Firewall on Windows XP SP 1 or earlier), or users unable to configure the port forwarding for Remote Desktop if they’re behind firewall or router’s NAT.
How to Change the Listening Port for Remote Desktop
Microsoft has a Knowledge Base article KB306759 that details how to modify and change the Remote Desktop listening port by changing registry value.
Start Registry Editor by clicking on Start -> Run, and type in regedit in the Run text box, and then press Enter or click OK.- Navigate to the following registry branch/subkey:
HKEY_LOCAL_MACHINE\System\CurrentControlSet\
Control\TerminalServer\WinStations\RDP-Tcp\ - Locate the registry entry PortNumber in the right pane.
Right click on PortNumber and choose Modify (or select PortNumber, then click on Edit menu and select Modify).
On the Edit DWORD Value window, click on Decimal.- Type in the new port number on the Value Data text box.
- Click OK when done.
If you don’t want to mess or modify in the Windows registry yourself, IntelliAdmin has a small free utility tool Remote Desktop Port Change (RDPRemotePortChange.exe) that allows users to change the Remote Desktop listening port on local computer or on remote computer across the LAN.
To change listening port for Remote Desktop for local PC (the computer that you’re using now), simply select Local System, or select Remote Computer for other computer and key in the desired computer name or IP plus authentication user name and password to change the listening port. Configure the required settings i.e. the new port number for Remote Desktop, and whether to reboot the PC after the change, and simply press Submit.
Note that Remote Assistance feature in Microsoft Windows XP may not work correctly if the the listening port of Remote Desktop has been changed. Beside, when want to connect or remote control this particular computer with non standard listing port by using the Remote Desktop connection from remote computer, the port number must be specified together with computer host name or IP address to connect to that specific port.
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Entries (RSS)
June 25th, 2008 02:41
[...] Remote Desktop for the remote computer has been enabled, and listening on default Remote Desktop port for any incoming Remote Desktop Connection. For security reason, you may want to consider changing the Remote Desktop listening port. [...]
March 6th, 2008 19:01
[...] default listening port for Remote Desktop (3389) of the computer can be changed to another port number easily. If the Remote Desktop listening port number for the remote computer where the Remote [...]
December 4th, 2006 18:20
[...] The default listening port for Remote Desktop (3389) of the computer can be changed to another port number easily. If the Remote Desktop listening port number for the remote computer where the Remote Desktop client is going to connect to has been changed to use non-default and non-standard port to accept Remote Desktop connections, this non-standard specific port number has to be specified in Remote Desktop Connection client. User uses Remote Desktop Connection client to connect to remote computer that has Remote Desktop Protocol (RDP) server enabled and running. In Windows XP, Remote Desktop Connection can be accessed by clicking Start Menu -> All Programs -> Accessories -> Communications, and click on Remote Desktop Connection. Microsoft Knowledge Base article KB304304 provides details on how to configure the Remote Desktop client to connect to a specific port when you use Windows XP, however, the procedure and protocol should be all the same in all operating system that uses Remote Desktop client. [...]