Dear all,
I managed to install a calendar/contacts server on debian using the nss-plugin for authentication. I have two questions on using the server. Posts on this list related to this are quite old and I'm not sure they still apply.

1) The documentation of the nss-plugin states:

Shared calendars are represented by groups of users. The group name must start with groupPrefix to avoid collisions with system users - the default is caldavd-. The members of these groups are allowed to read/write the calendar.[1]
I created a group caldavd-test and I'm able to se the group members at

https://calendarserver:8443/principals/groups/test

Now, my question is:
how can users see the shared calendar? What is the correct url?

2) How can users share calendars with other users when using Thunderbird as user-interface?

Thanks in advance for your support

Dominik

[1] http://honk.sigxcpu.org/con/Apple_Calendarser_with_Name_Service_Switch_directory_backend.html