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Nagios Plugins for Linux

A suite of Nagios plugins for monitoring Linux servers and appliances

Nagios is an open source computer system monitoring, network monitoring and infrastructure monitoring software application. Nagios, originally created under the name NetSaint, was written and is currently maintained by Ethan Galstad along with a group of developers who are actively maintaining both the official and unofficial plugins.

The Nagios Plugins for Linux are intended to be run by NRPE, the Nagios Remote Plugin Executor, that "allows you to remotely execute Nagios plugins on other Linux/Unix machines. This allows you to monitor remote machine metrics (disk usage, CPU load, etc.)."

Available Nagios Plugins

Plugin Name	Detailed Informations
check_clock	Returns the number of seconds elapsed between local time and Nagios time
check_cpu	Checks the CPU (user mode) utilization
check_cpufreq	Displays the CPU frequency characteristics
check_cswch	Checks the total number of context switches across all CPUs
check_fc	Monitors the status of the fiber status ports
check_ifmountfs	Checks whether the given filesystems are mounted
check_intr	Monitors the total number of system interrupts
check_iowait	Monitors the I/O wait bottlenecks
check_load	Checks the current system load average
check_memory	Checks the memory usage
check_multipath	Checks the multipath topology status
check_nbprocs	Displays the number of running processes per user
check_network	Displays some network interfaces statistics
check_paging	Checks the memory and swap paging
check_readonlyfs	Checks for readonly filesystems
check_swap	Checks the swap usage
check_tcpcount	Checks the tcp network usage
check_temperature	Monitors the hardware's temperature
check_uptime	Checks how long the system has been running
check_users	Displays the number of users that are currently logged on