Redirect all subdomains to my site

I'm creating site where each user will have
their own subdomain like user.mydomain.com.

I's it possible setup dreamhost name server
to redirect all subdomain.mydomain.com requests to
my site - mydomain.com

without need to add redirect for every new username
in control panel.

In reply to:

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I's it possible setup dreamhost name server to redirect all subdomain.mydomain.com requests to my site - mydomain.com

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What you are trying to do sounds like a wildcard DNS record. Unfortunately, I don't think DreamHost allows you to do this on a shared server.

Here is a quote from the wiki article on the subject;

"Wildcards... in general, we will not add wildcard DNS records for you on a shared hosting account. This is for a number of reasons. If you have a special request, we'll consider it, provided you truly understand all of the implications of doing this."

Mark

Thank you!
This is exactly what I'm want to know.