Welcome Nagios Core Users! You’ll find downloads, documentation, and tutorials on Nagios Core here in the Nagios Library. If you encounter problems, or require technical support for Nagios XI, please report these to our online support forum.


Download the latest version of Nagios Core. All downloads feature a free 60-day fully functional version of the software.

Download Now

Technical Documentation

Find technical documentation to better understand and manage your Nagios Core installation.

View Documentation Admin Guide


Find tutorials on installing, configuring, and using Nagios Core.
Tutorials Manuals


Support for Nagios Fusion is provided via our online support forum. Customers also receive priority support services via a special customer-only email list.
Support Forum