Find out what ports a program is useing?

[DPH]

Hello

Anyone knows where i can find a program where i can check what ports a program is useing?

Have some trouble adding port forward on my pfsense box..

Hope someone can help me!

 

[Veriac]

You can do this with the netstat command in Terminal.
http://developer.apple.com/library/mac/#documentation/Darwin/Reference/ManPages/man1/netstat.1.html