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

Tool for monitoring network devices (mainly using SNMP) - monitoring check plugin

Nagios/Icinga/Sensu plugin to check current server's RAID status ⛺

🐧 Nagios-compatible Plugins for Linux

This systemd check for nagios compatible monitoring systems will report a degraded systemd to your monitoring solution. It can also be used to monitor individual systemd services and timers units.

A Python class library which helps with writing Nagios (Icinga) compatible plugins.

Icinga2/Nagios plugin for checking domain expiration

Moodle health checks for load balancers / nagios

CheckSyno - Icinga (Nagios, et al) Synology monitoring plugin

Here i put some created or modified monitoring plugins voor nagios/opsview/icinga

Monitoring plugin for MikroTik devices for Icinga/Nagios/...

Monitoring plugin to check automatic updates (unattended-upgrades) on Debian / Ubuntu.

Nagios plugin for check fail2ban status and jails.

A Nagios / Icinga plugin for checking product synchronization within Katello/Red Hat Satellite 6.x

Monitoring plugin to check HAProxy with Icinga, Nagios and other compatible monitoring solutions

Some Nagios plugins

A script for presenting information about Cisco devices with SNMP. Written to work as a plugin for Op5/Nagios but can have other uses.

Nagios plugin to check for outdated OS release

Monitoring plugin to check how long ago the last snapshot of a ZFS dataset was created.

Monitoring plugin to check Sophos XG firewalls with Icinga, Nagios and other compatible monitoring solutions