What does it do?

NetStat is a utility that is built into most UNIX releases. It allows you to see any existing IP connections. This includes any "Listening" ports, established connections and connections waiting to be closed.

How do I use it?

Open a NetStat Window. At first the "TCP" connections will be shown. To display "UDP" connections, click "UDP". By default NetStat is set to just show IP addresses and the ports in a "raw" format. If you want to see these values as names (rather than numbers), check the "Resolve DNS" box. This should show the first few characters of any DNS name. If you want it to show the whole name, disregarding the spacing, uncheck "Truncate Addresses".

Note: When NetStat is set to resolve the DNS, it won't refresh as often because it has to look up the names.

Problems

None that I know of.