= Alerting and Notification on Icinga2 =

Like in LibreNMS, we can setup multiple alerting mechanisms in Icinga2, and since Icinga Stack is a more advanced software, any type of custom notification  system can be associated. In this tutorial, we will only focus on setting up email, slack and telegram alerting systems.

== Email Setup ==

By default, Icinga supports email notifications, but we need to configure an email server on the Icinga node as it will be using the Linux mail utilities for sending the mails.