Nagios Open Source

Nagios Core

Download the core monitoring engine and a basic web interface.


Nagios Core Plugins

Download the latest Nagios Core plugins package (50 plugins).


Nagios Core Frontends

See a variety of Open Source front-ends by the community.


Nagios Core Addons

See additional projects that extend Nagios Core functionality.


Nagios XI

Network Monitoring Software

Monitor your entire IT infrastructure quickly with the most powerful monitoring solution on the market.


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Nagios Log Server

Log Management Software

Quickly and easily view, analyze, and archive logs from any source in one central location.


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Nagios Network Analyzer

Netflow Analysis Software

See where your bandwidth is dipping or spiking with our commercial grade netflow data analysis solution.


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Nagios Fusion

Using Nagios Fusion you gain a centralized visual operational status and enables faster problem resolution over your entire network.


Free Download