Administrator Guide


Nagios Fusion comes with it's own command line installer. Alternatively you can use the pre-built virtual machine images to get up and running quickly. While the installation process takes care of almost everything for you, Nagios recommends that you have at least general knowledge about the linux server you're installing it on along with Apache's webserver and the MySQL database.

System Requirements

Make sure the server you install Nagios Fusion on meets the requirements below.

Server OS:

  • CentOS 7
  • CentOS Stream 8/9
  • RHEL 7/8/9
  • RHEL requires the Optional software channel to be enabled, further details are located here: Enabling RHEL Optional Software Channel
  • Debian 10/11
  • Ubuntu 20/22

Minimum system specs:

  • 1 GHz Processor
  • 1 GB RAM
  • 8 GB HD

Recommended system specs:

  • 2+ GHz Processor
  • 4 GB RAM
  • 40 GB HD
  • RAID 5 Drive Configuration

Ports and Protocols

While there are a set of basic default ports for Nagios Fusion, Fusion is highly configurable, and an administrator may use non-default ports should they so choose.

Ports Explanation
http/s: 80, 443 Nagios Fusion's interface is web-based. As is the communication channel between Fusion and the remote hosts.
ssh: 22 Nagios Fusion is built to run natively on CentOS or RHEL linux. While nearly all administration can be done through the web interface, administrators may from time to time wish to log in.

Installation Options

There are two options available for installing Nagios Fusion:

  1. Use the Nagios Fusion VMware virtual machine. This is the fastest way to get up and running with Nagios Fusion. The VMware machine can also be used in enterprise environments where VMware ESX, vSphere or other VMware server products are deployed. Note: maintenance and support of underlying operating system or virtual machine architecture are the sole responsibility of the customer.
  2. Install Nagios Fusion manually. Use this option if you wish to install Nagios Fusion on a physical server (e.g. for performance reasons) or a virtual server running a supported Linux distro.

Choose the option best suited for your needs. If in doubt, we recommend using the Nagios Fusion VMware virtual machine to get up and running quickly.

These documents describe various steps along the way in regards to installation:





Nagios Fusion - Getting Started

Nagios Fusion 2024 - Getting Started