Icinga 2 is an open-source monitoring system designed to oversee the health, performance, and availability of IT systems, networks, and applications. It offers robust monitoring features, real-time alerts, and extensive integration options to enhance operational efficiency.

Features of Icinga 2:

• Scalable and flexible monitoring for distributed systems.
• Real-time alerts and notifications for proactive issue resolution.
• Customizable dashboards for data visualization.
• Integration support for tools like Grafana, Prometheus, and Elastic Stack.
• Support for high availability and distributed monitoring setups.
• Extensive plugin library to extend functionality and adapt to specific needs.

    $ sudo apt update
    $ sudo apt install icinga2
    $ icinga2 --version
    

Disclaimer: Icinga 2 is an open-source project distributed under the GNU General Public License (GPL). It is maintained by a community of contributors and is provided "as is," without any warranty, express or implied. Users are responsible for adhering to licensing terms while deploying and using Icinga 2.