network monitoring tools on linux

netactview: a network activity viewer for linux

I was trying to find a linux equivalent for "diamondcs port explorer"/tcpview/cports. It was surprisingly hard to get this information: took well over an hour, but I finally got exactly what I needed: netactview

netactview dynamically updates what ports are in use by what application, just like tcpview/cports/etc

It's available here:
http://netactview.sourceforge.net/download.html



iftop: display bandwidth usage on an interface

iftop needs libpcap and libcurses, and helps identify which connection is sucking out all your bandwidth. Quoting the home page, "Handy for answering the question "why is our ADSL link so slow?"

iftop can also show source and destination ports in each network connection (press ? for the help screen, just like you would in top).

iftop home page

Ubuntu!!!

A person with ubuntu is open and available to others, affirming of others, does not feel threatened that others are able and good, for he or she has a proper self-assurance that comes from knowing that he or she belongs in a greater whole and is diminished when others are humiliated or diminished, when others are tortured or oppressed.

-- Archbishop Desmond Tutu, 1999