Hi, I am a long time Debian Linux user and found out about the calendarserver from darwin. I installed it on Debian Lenny but have some questions since I could not find appropriate docs for the configuration files (there are only the comments): 1. Can Calendarserver accept username/password combinations directy from the system users (/etc/passwd, /etc/shadow) without the use of the accounts.xml or kerberos backend? It is possible to use the system user names as email-addresses (I guess that this is for notification)? 2. If yes, it is also possible to reuse the group information from the system (/etc/groups) as permissions for calendars? I do not want to edit accounts.xml each time a new user is added or removed. 3. How do I create a calendar that can be used by several persons at the same time (random read and write access)? What URL do I have to enter in the caldav-clients? Or do I have to create it on the server first? Thanks in advance Martin Bretschneider