Open Source Application Monitoring and Packet Tracing system
...has moved to packetpeeper.org
Build custom filter for your network based off of common communication
A simple cacti viewer for smartphones
ICMP ping for Java
This tool locks down Linux and UNIX systems.
FAN is Linux-based operating system provided Nagios
A XMPP robot for Nagios(tm) notifications and interaction.
Debugging tools for application-to-application communication.
Batch system monitoring and archiving
Recursive mapping/discovery of network devices via CDP/OSPF
Icmp Pinger
It scans/connects/gives info about Wireless networks