Tristan's questions

I have a WebDAV user set up that currently gets usernames and passwords from my MySQL Database. I give users the option to use WebDAV for large file uploads (this is for a file sharing service I'm currently developing) but I've reached a little issue I can't seem to figure out.

First of all - how would I go about each user having their own WebDAV root so they can't look into other user's files? I already run a cronjob that checks for any users that enabled WebDAV and automatically creates the directories with the appropriate permissions. I just need some method of telling apache this.

Thanks for any help, I really appreciate it.

I also am aware I could just run a cronjob every minute to generate me an apache config and reload the apache config, but this would just be a little too much overhead and I'd like some more flexibility.

I recently aquired a domain from GoDaddy, but find their zone file editing rather bad, since it won't let me do double subdomains, like bb.api.example.com, which are possible, since other web hosts can do that.

I have figured out I need to install BIND on my Ubuntu server - which sounds reasonable to me after reading up on it. How would I configure my domain then to use the zone file that's on my server, and not the one GoDaddy has? I suppose this might have something to do with the domain's nameservers or something.

Any help is appreciated!