This book will give you all information that is neccessary for installation and administration of a TUTOS system. Nearly all features of TUTOS can be configured by the main config file php/config.pinc. It is a good idea to make a backup of this file when everything works fine. New releases of TUTOS will not come with a new php/config.pinc but with php/config_default.pincand do not require a migration of your changes. You only have to handle new features.