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About Nagios

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Nagios is a powerful monitoring system that enables organizations to identify and resolve IT infrastructure problems before they affect critical business processes.

First launched in 1999, Nagios has grown to include thousands of projects developed by the worldwide Nagios community. Nagios is officially sponsored by Nagios Enterprises, which supports the community in a number of different ways through sales of its commercial products and services.

Nagios monitors your entire IT infrastructure to ensure systems, applications, services, and business processes are functioning properly. In the event of a failure, Nagios can alert technical staff of the problem, allowing them to begin remediation processes before outages affect business processes, end-users, or customers. With Nagios you'll never be left having to explain why an unseen infrastructure outage hurt your organization's bottom line.

In Detail


Discover what Nagios can do for you and learn how it works. Learn more.


Information on features and capabilities. Learn more.


Case studies, statistics, awards, and more - proof that Nagios is the right tool for you. Learn more.

Open Source Community


Thousands of Nagios projects that build the perfect monitoring solution. Learn more.


A huge community of supporters and contributors is what makes Nagios great. Learn more.


Meet some of the Nagios Team members. Learn more.


Find out how you can get involved with Nagios. Learn more.