An eye on your system
Open Source Monitoring System for performance and availability.
Graphical network monitoring and documentation tool
Xymon monitors your hosts, your network services, and everything else.
FlowViewer is a web-based netflow data analysis tool.
Enhanced Apache Server Status page - for one or multiple servers
Stream manager
A simple, portable port scanner
Snare Enterprise: bit.ly/Snare-Trial
Continuously monitor server connections
Show devices in a lan
Pinger alert, STATICTICAL TABLES, send EMAILs or SMS by SMS GATEWAY