This tutorial guides users on how to install the GLPI IT Service Management (ITSM) software on Ubuntu with an Apache2 HTTP server. GLPI is a comprehensive, open-source ITSM platform used by IT decision-makers for efficient problem-solving and insight into company IT assets. The steps cover Apache2 HTTP and MariaDB installation, PHP 7.2 setup, GLPI database creation, GLPI release download, server configuration, and the GLPI installation process. A final step also demonstrates post-installation cleaning.