Every so often I get the urge to monitor more closely what's going in and out of my machine, so I'm looking for a network monitoring application for OS X 10.4. Nothing fancy, just a little GUI that shows how much data is sent and received to/from which host, along with port/protocol used, and the local process/application that's sending/receiving. A great bonus feature would be if it can run continuously as a daemon, too, and log the data into some file. Does anyone have a recommendation? Shareware is fine. Must be PowerPC-compatible, my hardware is a bit dated...
Ping & DNS - updated with new look and Ping home screen widget
The "Sidekick" application from the same author comes close to what I'm looking for (it's missing information about the local process thats's doing the communicating). But knowing which hosts are accessed is a good first step.
I use tcpflow when doing web development. It's not a graphical app but it was made to run continuously log the traffic. A quick look at their web page shows that they have a version for OSX as well as the source if you want to build it yourself. [ February 27, 2008: Message edited by: Ben Souther ]