Pandora FMS - Flexible Monitoring System
Pandora FMS is a performance and availability monitoring system, ready for big environments. It uses agents for local monitoring and can do several kinds of remote network monitoring. It watches your systems and applications, and allows you to know the status of any element of those systems.
It supports WMI, Agent and Network monitoring. It provides support to track GIS and viewing. Pandora FMS can also monitor any kind of TCP/IP service, without the need to install agents, and monitor network systems such as load balancers, routers, switches, operating systems, applications, or simply printers if you need. Pandora FMS also supports SNMP for collecting data and for receiving trap.