Install icingaweb2-module-doc by entering the following commands in the terminal:
sudo apt update sudo apt install icingaweb2-module-doc
Description:
simple and responsive web interface for Icinga - documentation module
Icinga Web 2 is a very modular, fast and simple web interface for your Icinga monitoring environment. . This module adds the documentation viewer of Icinga Web 2, which can also display the documentation of other modules.
Homepage: https://www.icinga.org
Version: 2.4.1-1
Section: universe/doc