Virtual Host? I think? I need serious help lol.

[PHP___ME___LOVE]

Well,I always wondered how sites like Blogger.com coded their custom domain support to their multiblogs software.

A user points their domain to their site with a cname, and you add it in your blog's ACP. Then your custom domain acts as if you're using an actual host, and redirects to the right blog and everything.

[bradgrafelman]

If it were PHP, you could simply check $_SERVER["HTTP_HOST"] and load content dynamically based on the host.

I doubt they modify their webserver config every time to accommodate all of the different hosts being added.