Thanks for the links, I'll follow them up.
The reason I want to do this, is to allow the shared resources of an i-bay through webdav. In particular, I have a number of distributed users who share Mozilla calendars, and I would like to do it through a webdav i-bay. Their calendar files would be written to
https://mydomain/webdav/theirname.ics, where 'webdav' is the i-bay name with webdav enabled. For security reasons, each user should log in using their own username an password.
Setting up a VPN is probably overkill, as the webdav protocol is very lightweight, and rides on the back of https requests. That is one of its advantages, so I would rather not weight it down by requiring VPNs etc to be set up on client machines.
Some handy links anyway
-- JJ