Prometheus – Nagios Library

How to Use the Prometheus Wizard in Nagios XI

Gavin Wojtas — Wed, 20 Aug 2025 21:21:06 +0000

Nagios XI includes a Prometheus wizard that enables you to easily target hosts running Prometheus exporters (Windows or Linux) and quickly configure monitoring of CPU, memory, disk, and other exporter metrics, with default ports preselected.

This video provides a guided walk-through covering each step of Monitoring the Prometheus Windows Exporter in Nagios XI:

You can refer to this documentation for full details

Monitoring-Prometheus-with-Nagios-XI-x

Here is a direct link to the PDF as well:

How to Monitor Prometheus with Nagios XI

Prometheus Monitoring with Nagios XI: Installing the Exporters

Louie Mattia — Fri, 06 Jun 2025 20:13:47 +0000

Integrating Prometheus with Nagios XI combines powerful time-series monitoring with flexible alerting and visualization. By leveraging Prometheus’s efficient data collection and querying capabilities alongside Nagios XI’s mature alerting and escalation workflows, IT teams can monitor systems more proactively and respond to anomalies faster. In this guide, we’ll walk through configuring Prometheus to export metrics, for both Windows and Linux.

Prerequisites

You have Internet or Ethernet access
Your host is running Linux or Windows

Installing the Windows Exporter from Prometheus Community GitHub onto a Windows Host

1. Download the latest version from GitHub

Go to https://github.com/prometheus-community/windows_exporter
Look for the latest release and download the amd64.msi file

2. Run the installer

In the initial Custom Setup section, choose Entire feature will be installed on local hard drive under Firewall Exception. This will add an inbound permission for the Exporter listening port.

Enabling the Firewall Exception feature.

Click all the options that say Next or Proceed in the installer
- You do not need to change or add any other information to use the Prometheus Wizard in Nagios XI, you can simply keep the defaults.

Windows Exporter Configuration

It will say it is installed
(Optional): Confirm it is up and running by entering http://:9182/metrics

Results from the metrics page

With all the above steps completed, your Windows system is now properly configured for Prometheus monitoring, and you’re ready to move on to integrating it with Nagios XI.

Installing and Running the Prometheus Node Exporter on a Linux Host

1. Download the latest version using command line

Go to https://prometheus.io/docs/guides/node-exporter/
Right click the Linux download link and select Copy Link to get exactly what you need to enter in the below wget command.
On your Linux host, open the terminal
Run the following command:

# wget https://github.com/prometheus/node_exporter/releases/download/v/node_exporter-.-.tar.gz

This will download the Node Exporter to your Linux host.

Node Explorer Downloaded

2. Run Node Explorer

Run the following commands:
- tar xvfz node_exporter-*.*-amd64.tar.gz
- cd node_exporter-*.*-amd64
- ./node_exporter

Node Exporter Directory Made

Node Exporter Running

With these above steps completed, your Linux host is ready for Prometheus monitoring, and we are ready to move on to integrating with Nagios XI.

Conclusion

With this, we’ve set it up the data exporters and are ready to configure monitoring in Nagios XI, enabling us to gather all of the same data the same way that Prometheus does, giving us access to the detailed information it provides while showing the data in XI in a clear way.

Using the Prometheus Wizard in Nagios XI

Louie Mattia — Fri, 06 Jun 2025 19:11:06 +0000

Nagios XI is a robust monitoring platform and integrating it with Prometheus enhances your ability to collect performance metrics from a wide range of systems and applications. This wizard comes with the premium version of Nagios XI. Whether you’re an experienced administrator or new to Nagios XI, this guide will help you quickly deploy and leverage the full power of Prometheus integration.

Prerequisites

Know the IP address of your host
Your Host is Linux or Windows
You have the Linux Exporter or Windows Exporter installed on your host
- If you need help with this, you can refer to this article and come back

Configuring Hosts using the Prometheus Wizard

As long as you are using the premium version of Nagios XI, you will automatically have the Prometheus wizard. If you are not using premium, you will need to upgrade to access the wizard.

Go to Configure (gear icon) > Configuration Wizards
Find and select Prometheus

Prometheus Wizard

Enter the host IP Address
Select the Operating System (Windows or Linux)
Do not change the host port, it will select the default for both Windows and Linux

Prometheus Wizard Setup

By default, the wizard will be set up to perform services for the CPU usage, memory usage and the disk usage.

Default services for the Wizard

You can add more services that the exporter grabs by scrolling a little lower, should you wish to also monitor any of these services simply click them or hit select all.

Additional services to select

Verify Monitoring

On the homepage find your new host and check its services. You’ll be able to see all the services and depending on how long they have been running you can see a graph showing the changes over time.

Host Services

24 Hour CPU Usage Graph

As you can see with our new host, it has started to monitor all services that we had selected.

Conclusion

Integrating the Prometheus Wizard with Nagios XI streamlines performance monitoring, greatly improving the efficiency and responsiveness of your infrastructure oversight. With this intuitive tool, administrators can easily tap into key metrics, quickly detect issues, and maintain the health and stability of their systems.

To learn more about using monitoring wizards in Nagios XI, you can take a look at this document:

Understanding and Using Configuration Wizards in Nagios XI