It's actually very easy to write.
> I want to give users of my site the option to register for a subdomain
> redirection service. I scanned the Internet for some script, but
> didn't really find anything that works. Tried the PHP script fromhttp://opendomains.vnn.bz/and
many others. So now I want to ask you
> if you know of any script in PHP, Perl, Phyton that can accomplish
> this task?