Administrator Guide

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. The following tutorial will demonstrate the initial setup steps for Nagios Fusion.

Nagios Fusion Web Interface Setup Guide

Using SSL

This document will describe how to setup SSL. This document is also to be used an initial point for troubleshooting SSL connections. It is intended for use by Nagios Fusion Administrators who require encryption:

Configuring SSL/TLS with Nagios Fusion

This document describes how to install the required certificate on the Nagios Fusion server for use with LDAP or Active Directory (AD) Integration in Nagios Fusion. This process is required if your LDAP / AD server has a self signed certificate.

This document is intended for use by Nagios Fusion Administrators that require secure LDAP / AD connectivity. You may already have the LDAP / AD Integration configured in Nagios Fusion, this documentation will allow you to update your integration to use certificates.

Using SSL/TLS with Active Directory / LDAP

System Settings

To configure general settings for the Nagios Fusion interface, login as the administrator and select the Admin link on the top menu bar. This will bring up the Admin dashboard, along with all of the administrative links on the left menu. To access any of the general program options, select the appropriate link under the System Configuration menu on the left side of the page.

Email Settings

Modify the settings used by your Nagios Fusion system for sending email alerts and informational messages. Note: Mail messages may fail to be delivered if your Fusion server does not have a valid DNS name.

Using A Proxy Server

This document shows how to configure Nagios Fusion to use a proxy server. In environments where your Nagios Fusion server does not have direct internet access you can use a proxy server for update checks, license activation and license maintenance checks. Nagios Fusion can also use the proxy server for polling fused servers.

This document is intended for use by Administrators who need to configure their Nagios Fusion server to use a proxy server.

Using A Proxy Server

Viewing Logs

Viewing logs in Nagios Fusion is easy. You can either view the file on the server based on the location you specified in the system settings, or view what is currently being sent through the logging subsystem by clicking on Fusion Logs on the Administration navigation side bar.

Data and Polling Settings

You can find the Data and Polling Settings on the System Settings Administration page under the Data & Polling tab. Use these settings to tweak your poller subsystem.

You may also want to check out this document on Nagios Fusion Performance Tuning:

Performance Tuning

License Settings

Use the License Information link to enter your license.

System Extensions

System Extensions make Nagios Fusion extremely flexible and powerful. You can adjust the look, feel, and functionality by using additional components and dashlets.


Components are optional extensions to Nagios Fusion that can be installed by administrators to provide enhanced functionality to both end-users and administrators alike. For example, components are available for providing new notification methods and UI enhancements and modifications.

You can install and remove components via the Manage Components link on the Administration page navigation side bar. There are also Component Settings you can adjust in some cases. Look for the settings column in the components table.


Dashlets are addons for Nagios Fusion that are used as 'containers' to display specific information in UI. Once installed, users can add dashlets to one or more of their dashboards, allowing them to customize the look and feel of the information they find most useful.

You can install and remove dashlets via the Manage Dashlets link on the Administration page navigation side bar.

Fused 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.

Important: Only Nagios Core versions, newer than 4.0.7 are supported.

Managing and Testing

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

User Management

Nagios Fusion 4 introduces true cross-server multi-tenancy. When you create a user (and are using the latest XI servers) you are presented with the ability to map local Fusion users to remote XI users. This allows you to control who has access to what. You're even able to stop a particular user from seeing a fused server altogether. This document describes managing users in Nagios Fusion:

Managing Fusion Users

This document describes how to integrate Nagios Fusion with Active Directory (AD) or Lightweight Directory Access Protocol (LDAP). This allows user authentication and validation through the Nagios Fusion interface. This is helpful for system administrators by simplifying user management of large infrastructures and standardize credentials needed for Nagios Fusion by allowing users to authenticate with AD/LDAP credentials when logging into the system.

This document is intended for use by Nagios Administrators who want to allow users to authenticate with their AD/LDAP credentials when logging into Nagios Fusion.

Authenticating and Importing Users with AD and LDAP


Dashboards are the heart of displaying the data that you want to see. With the new dashlet and dashboard re-write that occured in Nagios Fuson 4, you have all that power at your fingertips. This document describes dashboards along with the dashlets you'll add to them:

Understanding And Using Dashboards In Nagios Fusion


Views are designed to provide individual users with quick access to Nagios Fusion pages and external websites they find useful. They are often used by network administrators who wish to display important information on wall monitors in network operations centers (NOCs) or public locations. This document describes Nagios Fusion views, what they are used for, and how they can be managed:

Understanding And Using Views In Nagios Fusion