Keeping the original subdomain url in the address bar with wildcard subdomains

Question

How can I change my rewrite rule to keep the original subdomain url in the address bar?

Currently if I type in "username.domain.com" it gets redirected to "domain.com/username"...and I would like the address bar to stay at "username.domain.com".

I'm using wildcard subdomains with this rewrite rule in my httpd.conf file:

<IfModule mod_rewrite.c>
   Options +FollowSymLinks
   Options +Indexes
   RewriteEngine On
   RewriteCond %{HTTP_HOST} !www.domain.com$ [NC]
   RewriteCond %{HTTP_HOST} ^(www.)?([a-z0-9-]+).domain.com [NC]
   RewriteRule ^(.*)$ http://domain.com/sites/%2 [L]
</IfModule>

Is this even possible?

Thanks in advance.

Answer 1

If you change the last line to proxy rather than redirect, I think that will get you the behavior you want:

RewriteRule ^(.*)$ http://domain.com/sites/%2 [P,L]