Nagios Fusion 2026R1: Discover The Dawn of Centralized Management
Nagios Fusion 2026R1 marks an important first step in an exciting new direction for Fusion: centralized management of other Nagios systems. Also included in this release is a new System Profile function and several issue fixes. In this article we’ll explore all of the updates.
Centralized User Management
Fusion has always provided a lot of value by enabling users to visualize status data from across their distributed Nagios deployments. It’s already a must-have for distributed environments and users who employ multiple Nagios Monitoring Solutions. Namely, Fusion’s ability to aggregate data from Nagios XI, Nagios Core, Nagios Log Server, and Nagios Network Analyzer systems and display it in custom dashboards and tactical displays. But one area of untapped potential has always been in serving as a platform for centralized management of other Nagios systems.
No longer is that the case! New in 2026R1 is the ability to copy users from one fused Nagios XI system to others with a few clicks, using the new Centralized Management menu. Although a humble first step, this new feature lays the foundation that will be used going forward to enable many more management capabilities in the future.

Learn more about using the Centralized User Management function:
Managing Nagios XI Users with Nagios Fusion
As an added bonus, this addition also necessitated adding a new update users’ endpoint (PUT/system/user) to the Nagios XI API, so both solutions were enhanced in the process.
System Profile
You’ll also notice a new System Profile menu, which can be used to generate and download a profile with a single click. The System Profile zip contains a wealth of data about your setup and serves as an invaluable resource for troubleshooting and support.

Fixes
Several issues were also resolved in this release to make Fusion more stable and reliable:
- Server polling interval is now being updated properly.
- The Administrator and User Guides are now being displayed correctly.
- The
ssl_hostname_verifyparameter is now being passed when adding a server via the API. - Users located in AD groups will now show up in the “Add User from AD/LDAP” page.
Learn More
This article is a great resource for learning more about all of the capabilities:
If you’re not currently using Nagios Fusion and would like to take it for a spin, you can find the free, fully functional trial options:
The Admin Guide is another excellent resource for learning how to manage and get the most out of all of the capabilities:




