How to Install Observium Network Monitoring Tool on Debian 11

Observium is a network monitoring tool for your server infrastructure. It's an auto-discovering network monitoring platform with low maintenance and supports a wide range of network devices and platforms, which includes Cisco, Linux, Windows, HP, Juniper, Dell, FreeBSD, Netscalar, NetApp, and many more.

Source: Howtoforge Linux Howtos und Tutorials