Hi guys,

I'm trying to establish a blog network on one server, and want my users to be able
to use their own domains.

I want users to have the option to change every URL in their site from

blognetwork.com/user/page.html

or

user.blognetwork.com/page.html

To:

http://their-domain.com/page.html

In other words, there would be no reference to blognetwork.com in
any of their URLs.

I can see other blog networks providing this service, so I know it's
possible, but I don't know how to do it.

Something to do with C Name / A Name, but I'm afraid I'm
pretty much clueless on DNS stuff.

Many thanks for any explanations you may be able to share.

(PS. I don't own blognetwork.com, just using this as example)

I'm using cname domain mapping with my Typepad blog.