Open Source Monitoring System for performance and availability.
VoIP SIP and SKINNY quality analyzer and packet / audio recording tool
Nagios Open Source network monitoring software - The Standard In ITM
Monitoring and reporting web gui for Bacula
Firewall log analyzer
Painel de Monitoramento em PHP/MySQL
Enterprise-class, distributed monitoring solution for networks & apps
Xplico is a Network Forensic Analysis Tool (NFAT)
PHP-based looking glass for Cisco, Juniper & Zebra/Quagga routers
PotHead
Open Source SIEM
Open source tool to monitor your servers and websites
DOCSIS network management
Scalable, distributed monitoring system for high-performance computing
Visual Network Management System
BGPHist stores MP-BGP updates activity and history into a database.
Batch system monitoring and archiving
Centreon Hypervisor for multiple Nagios Poller via FTP