Is a certain port open or closed, how to tell?

  • Thread starter Thread starter Robert
  • Start date Start date
R

Robert

Is there a way to determine whether any given TCP/IP port on my computer is
open or closed?

Thanks, Robert
 
"netstat -an" from a command prompt will tell you all
open ports. If you don't see the port you're interested
in, it's closed.
 
Hi Robert,

You can go to Start/Run and type cmd. In the resulting command window type
netstat -ano and you will get a list of all listening ports and ports in
use.

Thanks,
Marc Reynolds
Microsoft Technical Support

This posting is provided "AS IS" with no warranties, and confers no rights.
 

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