![]() ![]() After entering a new port number, click on the Hexadecimal option to convert the port number into hexadecimal format. The port number that you choose must correspond to a TCP port (not a UDP port), and you must select a port that is not currently in use. Now, enter a new port number for the RDP protocol. You can see what this looks like in Figure 2. ![]() Now, click on the Decimal option, and you will see the registry key’s value change to 3389, which is the default port number. The port number is currently displayed in hexadecimal format. When the Edit DWORD dialog box opens, you will see that the key’s current value is listed in hexadecimal format, as shown in Figure 1. Double click on the PortNumber registry key. This key has a default value of 0x00000d3d (3389). Now, navigate through the registry tree to HKLM\SYSTEM\CurrentControlSet\Control\Terminal Server\WinStations\RDP-Tcp.Īt this point, you will need to locate a registry key named PortNumber. This will open the Windows registry editor. Next, enter the REGEDIT command either at the Run prompt or inside of a command prompt window. ![]() Begin by logging on to the target computer with an administrative account. With that said, the registry remapping process is actually quite simple. Modifying the registry incorrectly can cause irreparable harm, which is why it is so important to make a backup. The procedure for reconfiguring RDP requires you to edit the registry. (The screen captures shown in this article were based on Windows 10 and Windows Server 2016, but this technique works with Windows versions as old as Windows XP.īefore I show you how to reconfigure RDP, I want to stress the importance of making a full system backup before you try it yourself. By default, RDP uses TCP port 3389, but Windows makes it possible to remap RDP to another port number. One way that administrators can make the remote management of Windows computers more secure is to configure a non-standard port for Remote Desktop Protocol. The Remote Desktop Protocol (RDP) is commonly used to manage Windows machines. ![]()
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