KBMon is a bandwidth-monitor for local network devices. On three different panels you can watch the speed of the transfered and the received data, and you can see the speed of the total data on the choosen interface.
serialsnoop to proste narzędzie linii poleceń dla Linuksa, które wyświetla bajty przesyłane do i z dowolnych dwóch portów szeregowych, PTY lub gniazdek sieciowych i zwraca cały ruch na standardowe wyjście w formacie hex lub ASCII.
EPAN is a protocol analyzer for ethernet networks. The program allows you to display the received frames either in an overview mode or in a frame detail mode.
Snowlog lets you browse your web server's access log files. It does not generate static HTML status reports but instead shows you all accesses in a list that you can filter, sort and search easily.