redirecting to subdomain via htaccess

Dan · 03-04-2008, 01:07 AM

Hello everyone!

Question. I have over 2000 URLs I'm trying to successfully 301 redirect to subdomains using the root htaccess file.

Code:

domain.com/same/NAME to NAME.domain.com

Note the "same" directory is a constant throughout all the URLs.

Instead of writing each URL line by line:
Redirect 301 /same/1 http://1.domain.com
Redirect 301 /same/2 http://2.domain.com
Redirect 301 /same/3 http://3.domain.com

I was thinking is it possible to redirect it all using 1 line, like:

Code:

Redirect 301 /same/$1 http://(.*).domain.com

EDIT: I already have the rewrite of the subdomains working, so just to clarify. All i'm looking to do is redirect the old pages to the new ones.

Salathe · 03-04-2008, 01:17 AM

It might not be as simple as copy/paste but a starting point might be along the lines of:

htaccess Code:

RewriteEngine On
RewriteCond %{HTTP_HOST} ^(www\.)?domain.com$ [NC]
RewriteRule ^same/(.*) http://$1.domain.com [R=301,L]

Dan · 03-04-2008, 01:22 AM

Worked a treat. Cheers Salathe.

Dan · 03-04-2008, 02:54 AM

Code:

RewriteRule ^sample/(.*)/ http://$1.domain.com [R=301,L]
RewriteRule ^sample/(.*) http://$1.domain.com [R=301,L]

I've had to use two lines to get it redirecting with a trialing slash and not.

So domain.com/sample/page and domain.com/sample/page/ both redirect to the same page.

Is there anyway to merge those two lines?

Salathe · 03-04-2008, 01:30 PM

Since we're afforded the yumminess that is regular expressions, we can simply specify that the trailing slash is optional with the question mark character (?). Also, will the varying values only ever be numbers? Or, would you like to only capture what's between sample/ and the next forward slash (if there is one)? I'm just asking because it's better to make the matching expression as specific as possible! At the moment sample/my/sub/domain.html would try to redirect to http://my/sub/domain.html.domain.com which I'm fairly sure you don't want.

Anyhow, to answer your question:
RewriteRule ^sample/(.*)/? http://$1.domain.com [R=301,L]

Dan · 03-04-2008, 02:14 PM

There is a mix of letters numbers and -.

When going to domain.com/sample/page/ it redirects to: page.com/.domain.com umm