Nagios can be installed in multiple ways. Many users prefer package installations, but this tutorial will cover a source installation of Nagios Core because of its platform independence and consistency with the Nagios Core documentation. Nagios requires knowledge of certain key files and directories, so having these locations match the Core documentation should simplify the learning process. The instructions for these section are tested and verified for RHEL/CentOS based Linux distributions, and all commands in the following sections should be run as the root user.

In five easy steps, you can install Nagios, and get it set up on your system. If you wish to skip manual installation altogether, you can also download a pre-installed virtual ...

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