Open Source Monitoring System for performance and availability.
Nagios network monitoring software is enterprise server monitoring
free netflow analyzer
Enhanced Apache Server Status page - for one or multiple servers
Monitoring and reporting web gui for Bacula
Produces a graphical map of hosts, switches and routers in a network.
Zenoss - Intelligent IT Operations Management
Xplico is a Network Forensic Analysis Tool (NFAT)
PHP-based looking glass for Cisco, Juniper & Zebra/Quagga routers
OPTOSS Next Gen Network Management System (NG-NetMS)
inventory, asset management network monitoring and backup appliance
Track your ARP/MAC table changes and so much more
Open source tool to monitor your servers and websites
Open Source SIEM
Welcome to the Volunteer-Based System for Research on the Internet!
Netflow visualisation and investigation tool
DOCSIS network management
Visual Network Management System