A shell script (that can be used as a Nagios/Icinga plugin) to check an SSL/TLS connection.

220+ check plugins for Icinga and other Nagios-compatible monitoring applications. Each plugin is a standalone command line tool (written in Python) that provides a specific type of check.

NetApp Monitoring over REST-API (Nagios, Icinga, CheckMK, etc.)

Gentoo Overlay for Icinga2 checks

Collection of check scripts compatible with nagios, nrpe, icinga, icinga2.

Nagios/Icinga monitoring check program for FRITZ!Box devices, based on fritzconnection.

Monitoring Plugins

A collection of Windows check plugins for the Icinga PowerShell Framework

When using Icinga2 in a distributed master configuration, this icinga function is a useful wrapper for executing both PowerShell and CMD commands in the remote environment, passing run-time parameters and optionally running a postexit script on the command's returned results.

Check for Elastic Cloud Server (ECS) snapshot age on Open Telekom Cloud (OTC)

Collection of Icinga 2 check plugins.

A compilation of external plugins for Monitoring from diverse developers.