How to Use the Linux Server (Legacy) Wizard in Nagios XI

Nagios XI includes a Linux Server (Legacy) configuration wizard that enables you to easily set up monitoring of Linux hosts using the NRPE agent, allowing quick configuration of system metrics, services, and processes.

You can refer to this documentation for full details:

Here is a direct link to the PDF as well:

How To Use the Linux Server (Legacy) Configuration Wizard in Nagios XI