System Configuration

Initial Setup

Upon the initial login to Nagios Fusion, you will be asked to configure a few basic system settings, such as the administrator password and the URL of the web interface

Once you're logged in, the following guide will serve as a great starting point to help you navigate and use Fusion.

Getting Started With Nagios Fusion 2026R2

Getting Started With Nagios Fusion 2024 & 2026R1

System Settings

Security

This document describes how to manage two-factor authentication (2FA) in Nagios Fusion 2026R2+.

2FA can be enabled using an authenticator app or an email code to require a second step after password entry for all Fusion users.

Using 2FA in Nagios Fusion - 2026R2

Data and Polling Settings

This document provides details on adjusting the authentication check and fused server polling frequency settings.

Nagios Fusion Performance Tuning - 2026R2

Nagios Fusion Performance Tuning - 2024 & 2026R1

Email Settings

This document describes how to configure email sending in Nagios Fusion to support functions such as user password resets and 2FA via an email code.

Configuring Email Sending in Nagios Fusion - 2026R2

Fusing Servers

Fusing remote servers is what Nagios Fusion is all about. Fusing a server is the process in which a remote Nagios XI or Core host is added to Nagios Fusion. This allows you to poll those servers for the data that's important to you.

When you fuse servers, you gain insight into the health of those remote hosts across your infrastructure quickly.

Supported Fused Server Versions

• Nagios XI version 2009R1.3+

• Nagios Core 4.0.7+

• Nagios Log Server 2024R2+

• Nagios Network Analyzer 2026R1+

Managing Fused Servers

By selecting the Manage Fused Servers on the Administration page navigation side bar, you are presented with the server list. The following document provides information on managing your fused servers:

Managing Fused Servers - 2026R2

Managing Fused Servers - 2024 & 2026R1

Fusion User Management

Managing Fusion Users

This document describes how to manage Users and (in Fusion 2026R2+) Roles in Nagios Fusion.

It covers both individual user management, as well as providing details on defining Roles for templated access control.

Managing Fusion Users - 2026R2

Managing Fusion Users - 2024 & 2026R1

Managing Users with AD/LDAP

Authenticating and Importing Users with AD/LDAP - 2026R2

Authenticating and Importing Users with AD/LDAP - 2024 & 2026R1

Managing Nagios XI Users with Fusion

Nagios Fusion 2026R1 marks the beginning of a new direction geared toward Centralized Management. Learn how to copy Nagios XI users from one fused XI system to one or many other fused XI servers right from the Fusion UI in this document (not yet available in Fusion 2026R2):

Managing Nagios XI 2026R1.0.1+ Users with Nagios Fusion 2026R1.x

Dashboards

This document describes how to use and manage Dashboards in Nagios Fusion.

Dashboards are a powerful feature of Nagios Fusion designed to provide individual users with customized displays of information they find useful.

Understanding And Using Dashboards In Nagios Fusion - 2026R2

Understanding And Using Dashboards In Nagios Fusion 2024 & 2026R1

Views

This document describes how to use Views in Nagios Fusion.

Views provide a rotating display of custom Dashboards, so are a great option for prodiving a stream of visualizations to a NOC screen display.

Understanding And Using Views In Nagios Fusion - 2026R2

Understanding And Using Views In Nagios Fusion 2024 & 2026R1