Nagios is an open-source monitoring tool that helps you monitor the entire IT infrastructure including servers, switches, applications, and services. It provides comprehensive monitoring and alerting capabilities, enabling you to easily identify and resolve issues before they impact your users.
Here are the steps to install Nagios on CentOS 8:
Before installing Nagios, it is recommended to update the system packages to the latest version. You can do this by running the following commands in the terminal:
Nagios requires several dependencies to be installed. You can install them using the following command:
Create a new user and group for Nagios using the following command:
Download the latest Nagios Core source code from the official website using the following command:
Extract the downloaded source code and navigate to the extracted directory:
Create a password for the Nagios admin user using the following command:
Start and enable the Apache and Nagios services using the following commands:
Open your web browser and navigate to http://localhost/nagios. Enter the Nagios admin username and password that you set earlier.
After successfully logging in to the Nagios web interface, you can add hosts to be monitored. Configure the necessary checks and notifications for each host to ensure proper monitoring of your IT infrastructure.
cd /tmpwget https://github.com/NagiosEnterprises/nagioscore/releases/download/nagios-4.4.6/nagios-4.4.6.tar.gz
Compile and Install Nagios Core
tar -zxvf nagios-4.4.6.tar.gzcd nagios-4.4.6 Compile and install Nagios Core using the following commands: ./configure --with-command-group=nagcmdmake allsudo make installsudo make install-initsudo make install-commandmodesudo make install-configsudo make install-webconf
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