Given how complex TCP/IP is, it's actually quite amazing that most of the time, all of the different protocols, services, and programs perform their jobs both efficiently and silently. Most of us don't even realize just how much is going on in the background, and that's as it should be. On the other hand, when a problem does occur on a TCP/IP network, the administrator charged with fixing it needs to obtain as much information as possible about what all those bits and pieces of the suite are doing behind the scenes. The network status utility,
netstat, serves this purpose.
netstat program is very simple in concept, being designed for only one purpose: to show information about the operation of TCP/IP ...