Mod-rewrite for Sub-domain effect

Good2CU

I would like to use mod-rewrite for sub-domain.domain.com to re-write domain.com/script?x=sub-domain

These 2 don't work:
RewriteRule ^{(.).domain.com$} /script.php?x=$1 [L]
RewriteRule ^http:\/\/(.).domain.com$ /script.php?x=$1 [L]

Is this possible, or will ther server always look elsewhere for http://sub-domain.domain.com?

Thanks

bradgrafelman

The RewriteRule only applies to the request URI, that is, the path requested (e.g. /index.php).

If you want to rewrite all traffic to a subdomain to a certain address, try something like:

RewriteCond %{HTTP_HOST} ^(.*)\.domain\.com$
RewriteRule .* http://domain.com/script?x=%1

Good2CU

I have these 3 rules above, does the new one interfere?

#format all urls as www. and re-format all domains to domain.com
RewriteCond %{HTTP_HOST} !^{www.domain.com}
RewriteRule ^(.*)$ http://www.domain.com/$1 [R=301,L]

#drop index.php
RewriteCond %{THE_REQUEST} ^GET\ ./index.(php|html)\ HTTP
RewriteRule ^(.)index.(php|html)$ /$1 [R=301,L]

#index
RewriteRule ^index.html$ /index.php [L] #no params, just php to html

I tried commenting out the first rule (both lines) but that didn't seem to have an effect.

How does www.domain.com get effected with your rule?

Finally, did you mean x=$1 instead of x=%1?

The first 3 rules I have are to avoid duplicate content issues with search engines, and the sub-domain rule would be an easy way to create any number of "better" urls having the keywords earlier in the string, and overal much cleaner looking.

(hopefully the first 3 do work as intended. I did them with another site, and when testing different scenarios, they seemed to work as intended.)

Thanks

bradgrafelman

Well the new one logically conflicts with the first one you have. If you're rewriting all requests that don't come through www.domain.com, then your new rewrite rule wouldn't make sense - all requests are already been forcibly redirected through the www subdomain. Logically, I would think that you'd want to replace this new rule with the first one listed. (You could also adapt that first rule, instead, so that "domain.com" gets re-written as "www.domain.com", and then update the "domain.com" in my rule above to be "www.domain.com").

Good2CU wrote:
How does www.domain.com get effected with your rule?

With my rule alone, it would be treated as any other subdomain would - redirected back to domain.com.

Good2CU wrote:
Finally, did you mean x=$1 instead of x=%1?

No, those are two separate replacement formats, and I certainly meant '%1'.

Good2CU wrote:
the sub-domain rule would be an easy way to create any number of "better" urls having the keywords earlier in the string, and overal much cleaner looking.

If that's seriously the only reason you're doing this, you might want to save yourself the effort; search engines could care less if you think your URL looks pretty if the page itself doesn't rank high as far as content goes. Strive towards validated, clean pages that don't rely on JavaScript, images, Flash, etc. to read the content.