Rewrite subdomain

subdomain rewrite

[makkermin]

mydomain.com -> www.mydomain.com

For this im using:

RewriteCond %{HTTP_HOST} !^www\.
RewriteRule ^(.*)$ http://www.%{HTTP_HOST}/$1 [R=301,L]

www.mydomain.com/profil/myusername (RewriteRule) www.mydomain.com/profil.php?username=myusername

For this im using:

RewriteRule ^profil/([A-Za-z0-9_]+) profil.php?username=$1

In addition to above I want:

myusername.mydomain.com (RewriteRule) www.mydomain.com/profil.php?username=myusername

How do I do that?

[lucy24]

You need a RewriteCond looking at %{HTTP_HOST}. The capture will be expressed as %1 rather than $1. Let's see what you come up with; it looks as if you've got the basic knowledge already.

[makkermin]

Well best I could come up with is:
RewriteCond %{HTTP_HOST} ^([A-Za-z0-9_]+).%{HTTP_HOST}
RewriteRule (.*) [%{HTTP_HOST}...]

But that gave me an 500... Other attempt gave me "endless loop"....

[lucy24]

Er, why do you have {HTTP_HOST} three times? You only need it once. But first detour to the post at the top of this subforum that explains why you need to use example.com.

Oh, and I now realize you will need to do some icky business with proxies (flag [P]) so your domain name doesn't turn the intended behind-the-scenes rewrite into a visible redirect.

:: detour to double-check ::

Note that the PT flag is implied in per-directory contexts such as <Directory> sections or in .htaccess files. The only way to circumvent that is to rewrite to -.

Sorry. That has nothing to do with your question. I just happened to see it, and it gave me a bit of a jolt. Like the guy who learned he'd been speaking prose all his life.