How to Install OpenNMS on Debian 11

In this article, we will have explained the necessary steps to install OpenNMS on Debian 11. Before continuing with this tutorial, make sure you are logged in as a user with sudo privileges. All the commands in this tutorial should be run as a non-root user. OpenNMS (Open Network Management System) is a free and open-source java-based network monitoring tool. It is a network monitoring applicat...