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 would like to avoid obvious alternative such as 3390 and 3391.


You can use any port that's not already in use on your computer; your choice. To get a list of ports currently being used (listening), you can use Netstat -a at a command prompt.

Here's a list of TCP ports used by various software and services to help you make your choice.

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This should help you. You can change it to any free port allegedly, just make sure it isn't used on your system :)

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  • Thanks, I know how to change it, just wondering which ports can I use? I don't know which ones are free. – CJ7 Apr 15 '12 at 3:26
  • Go 3390, it's not a well known port and you should be fine. – hardlywired Apr 15 '12 at 3:34
  • I think they will try 3390 because everyone suggests it as an alternative. – CJ7 Apr 15 '12 at 3:36
  • 2
    Pretty much anything that isn't listed here is probably safe. – hardlywired Apr 15 '12 at 3:40
  • I may add, you might like to contact your ISP about this and get a new static ip while you are at it. Also, if you don't need to RDP to that machine, banish the service or maybe try an alternative like VNC. – hardlywired Apr 15 '12 at 3:49

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