A suite of Monitoring Plugins (formerly known as nagios-plugins)
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 ⛺
A monitoring/inventory plugin to check components and health status of systems which support Redfish. It will also create an inventory of all components of a system.
check_rbl is a Nagios plugin to check if an SMTP server is blacklisted
A Nagios Plugin written in Perl for the Citrix ADC (formerly Citrix NetScaler). It uses the NetScaler NITRO API.
Nagios/Centreon plugin for nextcloud serverinfo API (https://github.com/nextcloud/serverinfo)
A Python class library which helps with writing Nagios (Icinga) compatible plugins.
🔑 HashiCorp Vault Monitoring Tool
Moodle health checks for load balancers / nagios
Icinga2/Nagios plugin for checking domain expiration
Monitoring plugin to check Docker / Kubernetes clusters managed by Rancher 2.x
SMTP DANE testing tool
Icinga / Nagios plugin to validate DNSSEC validity of a DNS zone.
Nagios plugin to check the status of a systemd service
Go-based tooling to check/verify certs
check_updates is a Nagios plugin to check if RedHat or Fedora system is up-to-date