Dynamic subdomain - How to get that

These days all over the place I see something like
http://john.blinksale.comand
http://mary.blinksale.com

My question is how to configure the server to have these subdomains
dynamically. Any pointer to an article/tutorial/book will be helpful.

Thanks.
-=- Raj

You could also do this with lighty and mod_mysql_vhost. or even
mod_evhost
if you don’t mind creating a directory dynamically instead of rows in a
table.

Vish

Neeraj,

We’ve recently done this with DHH’s account_location plugin. You can
get it
here (http://dev.rubyonrails.org/svn/rails/plugins/account_location).

Then have your ISP enable wildcard subdomains for your site. This will
allow ***.yourdomain.com to be routed to yourdomain.com and then the
plugin
will take care of the rest. You’ll still need to do some coding to get
it
to work with the way you’ve developed your user accounts.

Sam