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How do I disable/change service ports on Windows 2000 Server?

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  #1  
Old April 11th, 2004, 08:35 PM
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How do I disable/change service ports on Windows 2000 Server?
Hi I need to disable some service ports on Windows 2000 Server, and change some default ports to other ports. How do I do that? Thanks!
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  #2  
Old April 12th, 2004, 12:58 AM
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What services are you trying to do this for?

For the ones you are trying to disable, can't you just uninstall the service? You could use TCP/IP filtering to only allow certain ports to be accessed, but that wouldn't disable them on the computer.

For the ones you want to change, I'd have thought the only way you'd have been able to do this was through the management interface for the service. To give more help, I really need to know which services.
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Old April 12th, 2004, 01:08 AM
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Thanks for your reply, Edwin.

My purpose is to make the "telnet" service more secure. Since SSH is not built into Windows 2000, I have to use telnet, and I thought that changing telnet port to something other than 23 may help to make it less vulnerable to hacking.

Please tell me if I'm doing it the right way. Thanks!
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Old April 12th, 2004, 01:11 AM
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Another piece of information:

I modified the service port in the file "services" in WINNT\System32\drivers\etc, but it didn't make any difference.

I wonder why.
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Old April 12th, 2004, 07:15 AM
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I've had no experience myself of changing the port number for telnet, but this site:

http://dev.remotenetworktechnology....t/telnetsrv.htm

says it can be done. Just change it as it says - it recommends using a really high one so port scanners won't find it.
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Old April 12th, 2004, 06:49 PM
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you need to use port 22 for SSH. Look for a program called putty, I am not sure if they can provide a server for this SSH telnet program, but this is what you need, changing the port number for the telnet server won't do it.

-DudeDomain
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Old April 12th, 2004, 11:12 PM
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I used "putty" on a Linux server. But now I'm connecting to a Windows server, which does not have a SSH server built in.

Is there any way to get around it?
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Old April 12th, 2004, 11:22 PM
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I just tried it. Using the "tlntadmn" utility to change port works! Thanks, guys!

Do you know of any free SSH server for Windows 2K, by the way?
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Old April 13th, 2004, 12:38 AM
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Glad you got it working

Quote:
Originally Posted by betac
Do you know of any free SSH server for Windows 2K, by the way?


Does anything on this site look useful?
http://www.jfitz.com/tips/ssh_for_windows.html
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