Application Performance Monitoring System
Open Source Monitoring System for performance and availability.
Nagios network monitoring software is enterprise server monitoring
VoIP SIP and SKINNY quality analyzer and packet / audio recording tool
Firewall log analyzer
free netflow analyzer
Enhanced Apache Server Status page - for one or multiple servers
Painel de Monitoramento em PHP/MySQL
Produces a graphical map of hosts, switches and routers in a network.
Monitoring and reporting web gui for Bacula
Pinger alert
Fritz!Box SmartHome Monitoring with PRTG and AHA-Interface
Zenoss - Intelligent IT Operations Management
Network Ping time and UPS Logger
OpenResty/Nginx Gateway for API monitoring and management
Enterprise-class, distributed monitoring solution for networks & apps
Xplico is a Network Forensic Analysis Tool (NFAT)
Database monitoring agent for zabbix
PHP-based looking glass for Cisco, Juniper & Zebra/Quagga routers
OPTOSS Next Gen Network Management System (NG-NetMS)