Open Source Monitoring System for performance and availability.
Nagios Open Source network monitoring software - The Standard In ITM
For full, incremental, compressed and encrypted backups or archives
Identify sizes of memory modules installed on most UNIX-based systems
High-speed, 3D-friendly, TightVNC-compatible remote desktop software
Zabbix extension that reports various HDD status using various tools
Snare Enterprise: bit.ly/Snare-Trial
Performance monitoring and logging software for Linux and Windows.
A free open sourced Apache Http Server GUI developed with Java.
Web based Game server control panel
Scalable, distributed monitoring system for high-performance computing
DBIS Reference Implementation
unixadmin is a system administration tool for Linux and OS X
Redhat Linux OVM System Performance Monitoring