RDP (Remote Desktop Protocol), or Remote Desktop Protocol – is an application layer protocol that is used to provide remote access to servers and workstations Windows. By default, to connect via RDP using Remote desktop port TCP 3389, but sometimes it may be necessary to change it, for example, for security reasons.
Remote desktop port
The procedure itself is as follows:
Run Regedit Editor and go to the registry key HKEY_LOCAL_MACHINE \ SYSTEM \ CurrentControlSet \ Control \ Terminal Server \ WinStations \ RDP-Tcp.
Select option PortNumber, switchable in decimal format and specify any port.
Selecting the Remote desktop port keep in mind that all the ports are divided into three categories:
• Known Ports (0 to 1023) – are appointed and controlled by the IANA (Internet Assigned Numbers Authority), and are commonly used low-level system software;
• Registered Ports (1024 through 49151) – well appointed and controlled by the IANA, but are allocated for private purposes;
• Dynamic and / or Private Ports (49152 to 65535) – may be used by any process, for any purpose. Often, a program running on a registered port (1024 to 49151) gives rise to other processes that use these dynamic ports.
Port changed, and now it should open on the firewall. Run the management snap-in «Windows Firewall with Adwanced Security». It select incoming connections (Inbound Rule), click the right mouse button and from the context menu choose New Rule (New Rule).
Select a rule on the basis of the port.
Specify the number given us the port (TCP 50000 in the example).
Then, specify the action to our rules – allow connection (Allow the connection). Here, if necessary, for our connection, you can enable encryption.
Depending on where the server is located – in a working group in the domain or in the public domain is the network profile to which the rule.
We call created a rule so that it was easy to identify, and click the button «Finish».
Reboot the server and connect to it, do not forget to specify the address of the connection Remote desktop port separated by a colon.
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