Open Source Network Monitoring System

Description
Started in 1998 by Gerald Combs, this protocol analyzer was named Ethereal. At 2006 the name changed to Wireshark. Follow this link to now why Gerald Combs changed Ethereal to Wireshark.
After 10 years of development, by network expert all around the world, and still continuing, it is the de facto protocol analyzer now, with [...]

Description
There is another good open source software to test our network performance. Iperf. This software written by a team from The National Laboratory for Applied Network Research (NLANR). The old homepage for Iperf is at here but they said it is moved to sourceforge. But if you go to the old website you will find [...]