nextcloud

If you have missing files, or any discrepancies between physical and virtual filesystem under NextCloud, do this:

Go to the root directory of the NexctCloud installation, the issue the command (use webserver's owner as user, here: www):

 sudo -u www php ./occ files:scan --all

For addressbook use this format:

https://<NEXTCLOUD_SERVER>/remote.php/dav/addressbooks/users/<USER_NAME>/<CONTACTS_NAME>

You find the CONTACTS_NAME in the NextClouds database's oc_addressbooks table. The column name is 'uri'.

For calendar use this one:

https://<NEXTCLOUD_SERVER>/remote.php/dav/calendars/<USER_NAME>/<CALENDAR_NAME>

You find the CALENDAR_NAME in the NextClouds database's oc_calendars table. The column name is still 'uri'.