FlowViewer is a web-based netflow data analysis tool.
Xplico is a Network Forensic Analysis Tool (NFAT)
Open source tool to monitor your servers and websites
Simple excel file that monitors Ping logs to a specified IP or address
PingGUI, an app for pinging in Windows
A powerful WOL, ping, shutdown, GUI application.
Monitor and troubleshoot transactions in complex distributed systems
Monitorix is a free, open source, lightweight system monitoring tool
Main repository for munin master / node / plugins
A utility to safely generate malicious network traffic patterns
Self-hosted, lightweight server and website monitoring and O&M tool