Monitoring and reporting web gui for Bacula
Firewall log analyzer
VoIP SIP and SKINNY quality analyzer and packet / audio recording tool
Open Source Monitoring System for performance and availability.
Nagios Open Source network monitoring software - The Standard In ITM
A Java based fault and performance management system
JENNOM - Java Enterprise Network Nodes Monitor
Painel de Monitoramento em PHP/MySQL
Zenoss - Intelligent IT Operations Management
Enterprise-class, distributed monitoring solution for networks & apps
Database monitoring agent for zabbix
PHP-based looking glass for Cisco, Juniper & Zebra/Quagga routers
Track your ARP/MAC table changes and so much more
Open Source SIEM
Open source tool to monitor your servers and websites
DOCSIS network management
Software, Server and Application Monitor