This article covers how to install the latest version of the Icinga 2 monitoring application on the Linux Mint system. In fact, Icinga2 is an open source tool for monitoring the IT resources.
How to Install icinga2 Using apt on Ubuntu Linux system ?
Update apt database with apt using the following command:
$ sudo apt update
After updating apt database, We can install icinga2 using apt by running the following command:
$ sudo apt -y install icinga2
In this guide, you will learn to add Linux machine to Icinga2 for monitoring. The default port that icinga2 uses for monitoring is 5665 & it should be opened up in firewall to maintain a connection between master & host (called parent & child for icinga2).