Hi! Why not ask at install time whether someone wants to use private groups or not. It should be possible to add a few lines to the install or setup script that will do the configuration (umask, adduser script etc.) for the normal groups setup or the private groups. Peter -- Peter Tobias EMail: Fachhochschule Ostfriesland tobias@server.et-inf.fho-emden.de Fachbereich Elektrotechnik und Informatik tobias@perseus.fho-emden.de Constantiaplatz 4, 26723 Emden