Nagios is a host/service/network monitoring program written in C and released under the GNU General Public...

Cacti is a complete network graphing solution designed to harness the power of RRDTool's data storage and g...

Zabbix is a mature and effortless enterprise-class open source monitoring solution for network monitoring a...

Prometheus is a systems and service monitoring system. It collects metrics from configured targets at given...

Grafana is a general purpose dashboard and graph composer. It's focused on providing rich ways to visualize...