Nagios Documentation

Install guides, configuration references, and how-tos for Nagios Core and the open-source projects built around it.

Open-Source Projects

Nagios Core

The open-source monitoring engine. Object configuration, scheduling, notifications, and reference docs for Nagios Core 4.x.

Nagios Cross-Platform Agent (NCPA)

Install, configure, and query NCPA on Windows, Linux, macOS, Solaris, and AIX.

Nagios Plugins

Usage and options for the official Nagios Plugins package.

Nagios Mod-Gearman

Distribute check execution across worker systems to scale Nagios Core.

Nagios Visualization Add-ons

Add remote and passive checks to Nagios.

Other Popular Resources

Ask questions and get answers from the Nagios Community

Community-built plugins, add-ons, and integrations

Source code and issue tracking for Nagios Core, NCPA, and more

Exit codes, thresholds, and performance data for writing your own checks

Comprehensive resources, guides, and technical docs

Articles, tutorials, and best practices for IT monitoring

Get involved with the users and contributors behind Nagios

Enterprise Solutions Documentation

Administrator guides and documentation for Nagios Monitoring Solutions.