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

Server OS:

• 32 and 64 bit RHEL 5.x/6.x or CentOS 5.x/6.x

Minimum system specs:

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

Recommended system specs:

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

For more information on the hardware requirements needed to run Nagios XI, please, read this document:

Nagios XI - Hardware Requirements

There are two options available for installing Nagios XI:

• Use the Nagios XI VMware virtual machine. This is the fastest way to get up and running with Nagios XI. The VMware machine can also be used in enterprise environments where VMware ESX, vSphere or other VMware server products are deployed.
• Install Nagios XI manually. Use this option if you wish to install Nagios XI 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 XI VMware virtual machine to get up and running quickly.

Downloading The Virtual Machine

The Nagios XI VMware virtual machine can be downloaded from the Nagios Library at:

http://library.nagios.com/library/products/nagiosxi/downloads

Running the XI Virtual Machine Using VMware Player

You can run the XI virtual machine using VMware Player. You can download VMware Player free of charge from http://www.vmware.com/products/player/r. The video tutorial below shows you how to launch and run the Nagios XI virtual machine using VMware Player.

Running the XI Virtual Machine Using VMware Player

Virtual Machine Notes

Important information about the Nagios XI VMware virtual machine, including default login credentials, is found in the guide below. First-time XI users should read this guide to ensure they get up and running smoothly.

XI Virtual Machine Notes

Running Under VMware ESX

The Nagios XI VMware virtual machine is designed to run under VMware Player or Workstation. If you'd like to run the Nagios XI VMware virtual machine under VMware ESX, you'll need to convert the machine image using VMware Convertor. This video tutorial below takes you through the necessary steps to get up and running quickly.

Using The Virtual Machine With VMware ESX

Converting The VMware Image To VirtualBox

Users who with to run the Nagios XI VMware virtual machine under Sun's VirtualBox can do so by following this guide:

Converting the XI VMware Virtual Machine to VirtualBox

Experienced Nagios administrators who want to install Nagios XI on their own physical or virtual Linux servers can use this guide to get started.

XI Manual Installation Instructions

Note: Nagios XI can only be installed to RHEL, CentOS, or Fedora Core Linux distributions. We highly recommend installing Nagios XI on a 32-bit distribution.

Important: Nagios Enterprises highly recommends and will only support installing Nagios XI on a newly installed, "clean" system. Attempting to install Nagios XI on a pre-existing system with other applications already installed can cause the Nagios XI installation process to fail, critical system components and settings (e.g. database servers) to be modified in a way that negatively affects other applications, and previously installed applications to be automatically upgraded or removed. While installing XI on a system with other applications is possible, it is not recommended due to the possible interactions and complexity of multiple components that are required for Nagios XI to function. If you choose to ignore these warnings, you do so at your own risk.