Connection Monitoring Software
In Windows, I use a freeware app called ItCan Net Monitor, which shows all open TCP/IP connections to and from my machine. It's simple and doesn't blow you away with a million features.
Is there an equivalent in Linux for X? I've seen a few, but they seem to be overkill as they list socket connections and other extraneous information. I'm just after something that shows active TCP/IP connections, nothing more.
Thanks in advance.