How do you test to see if on a computer running Windows 2K has certain ports open for UDP? Netstat -a for all UDP ports returns *:*. It doesn't say if it is listening.

If you’re looking for a way to discover which ports are standing wide open on network machines, read about a powerful cross-platform solution that will do the trick. Editor’s note on June 4, 2015: ...

Maintaining command-line finesse is an important objective for Windows Server administrators. Rick Vanover offers some pointers on using the netstat command. Netstat is a command that some Windows ...