Hello, I am playing with DCS for two days and don´t get it... 1. I want to use DCS on an Ubuntu server for 30 Mac-Clients running iCal on Leopard. Works already. 2. I don´t want to setup an OpenDirectory service. It´s lot of overhead I don´t need. 3. I want to allow users to change (write) other users calendars, but not to everyone. I have the impression it might work if everyone is set to be an admin, but detailed write access without OD is not possible? Is that right? Is DCS the right tool for me? Additional question: Where are useful docs? Do they even exist? I found http://trac.macosforge.org/projects/calendarserver/wiki/ , but I am missing informations from ground up, like "What is a group? What can DCS do, and what can´t be done? Which permission can be set where, which tool can be used to view and set ACL, ..." Thanks a lot, bye, Jörg