Question

I have a mod rewrite that currently redirects

domain.com/folder/user

to

domain.com/folder.php?username=user

using:

RewriteRule ^folder/(.+)$ folder.php?username=$1 [QSA,L]

What I need done however is redirect http://user.domain.com/ to http://www.domain.com/folder.php?username=user . And if possible, I could exclude certain subdomains (like www. mail., etc. from being forwarded).

How would I do this? Any help is GREATLY appreciated 🙂

Answer 1

How it works:

• Extract user from http://user.domain.com/ and save a backreference to it with a RewriteCondition.

• The hostname of the request is stored in a Server-Variable.

  
  Figure : The back-reference flow through a rule.
  In this example, a request for /test/1234 would be transformed into /admin.foo?page=test&id=1234&host=admin.example.com. Source

• In the RewriteRule use the RewriteCondition‘s backreference.

• See also the note in the RewriteRule section:
  

  If you wish to match against the hostname, port, or query string, use a RewriteCond with the %{HTTP_HOST}, %{SERVER_PORT}, or %{QUERY_STRING} variables respectively.

• Configure your (virtual) server to listen to all the domains you want to-rewrite within to ensure all requests are passed into the same section/root of your server where you can do the rewrite. Otherwise you need to proxy internally.