Can Nagios Run on IIS Web Server?


Larry Thompson

Can Nagios Run on IIS Web Server?

The Nagios monitoring system is a popular choice for network administrators looking to monitor their infrastructure and ensure its availability. While Nagios is typically run on an Apache web server, some users may wonder if it can be installed and run on an IIS (Internet Information Services) web server instead.

The short answer:

Yes, it is possible to run Nagios on an IIS web server. However, there are a few considerations and additional steps that need to be taken to make it work seamlessly.


Before attempting to install Nagios on an IIS web server, make sure you have the following:

  • A Windows server with Internet Information Services (IIS) installed
  • The necessary permissions to install and configure software
  • A basic understanding of how Nagios works

Installation Steps

Follow these steps to install Nagios on an IIS web server:

Step 1: Download Nagios Core for Windows

The first step is to download the Windows version of Nagios Core from the official Nagios website. Ensure that you download the appropriate version that matches your operating system.

Step 2: Install PHP and FastCGI Extension for IIS

Nagios requires PHP to function properly. Install PHP by following the official PHP installation instructions for Windows. Additionally, you need to install the FastCGI extension for IIS to enable PHP support.

Step 3: Configure IIS

To configure IIS for Nagios, follow these steps:

  1. Open the IIS Manager
  2. Create a new website or virtual directory for Nagios
  3. Configure the website or virtual directory to use PHP and FastCGI

Step 4: Install and Configure Nagios Core

Once IIS is configured, proceed with installing Nagios Core by following these steps:

  1. Extract the downloaded Nagios Core package
  2. Run the installation script as an administrator
  3. Follow the prompts to install Nagios Core
  4. Edit the necessary configuration files to match your environment

Step 5: Start Nagios and Access the Web Interface

To start Nagios, open a command prompt as an administrator and run the following command:

nagios.exe /install
nagios.exe /start

You can now access the Nagios web interface by entering the URL of your IIS server in a web browser.

Potential Challenges and Considerations


Note that running Nagios on IIS may not provide all of the features and functionality available when running on Apache. Some plugins or extensions may not be fully compatible with IIS.


IIS is generally considered to be more resource-intensive than Apache. Ensure that your server has enough resources to handle both IIS and Nagios without impacting performance.


Keep in mind that maintaining an IIS-based Nagios installation may require additional knowledge and expertise compared to the standard Apache-based installation.


In conclusion, while Nagios is primarily designed to run on an Apache web server, it is possible to install and run Nagios on an IIS web server. By following the steps outlined in this article and considering the potential challenges, you can successfully set up Nagios on an IIS environment and leverage its powerful monitoring capabilities.

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