Configuration to monitor a linux client

hello i’m new to icinga2 and i want to monitor some laptops, i currently use icinga 2 v2.12.4 and i have icingaweb2 running on debian 10 and i also have icinga2 installed on the laptops with ubuntu 20.04. .Greetings


Do you have a specific question?

Given that you “currently use Icinga v2.12.4” I guess that means you’ve
already found the documentation at About - Icinga 2

Let us know if there’s anything you’re getting stuck with.