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.