Step-by-step – Nagios 4 CentOS 8.x/Stream-8 Installation

Installing

2. 2. Installing Nagios

   Then to Install Nagios 4 on CentOS
   Simply run:

   sudo dnf install nagios

   Authenticate with the User Admin Pass.
   If Got “User is Not in Sudoers file” then see: How to Enable sudo.
   And to Search for Nagios Plugins:

   dnf search nagios | grep plugins

   The grep Command refine the output List showing only the Entries matching the Keyword.