The Free & Popular opendhcp application for Physical & Virtual Machine
Enhanced Apache Server Status page - for one or multiple servers
A stress testing tool written in python.
The open source grid computing solution
Java asynchronous socket library
Open source tool to monitor your servers and websites
The free cross-platform antivirus software tool-kit
Simple meta-server for locating other multiplayer servers
Various TCP/IP servers, clients and network management tools
IOSec Addons are enhancements for web security and crawler detection
SNMP adaptor for JMX.