Question

Most examples show how to redirect all subdomain traffic to a primary domain, maintaining the directory structure. I actually don’t want this. I want to redirect all subdomain traffic (the site is going away) to the primary domain. This is not working:

Options +FollowSymLinks
RewriteEngine on
RewriteRule (.*) http://www.newdomain.com/ [R=301,L]

What happens, is if you go to this:

http://sub.newdomain.com/some/path/

You get this:

http://www.newdomain.com/some/path/

I want it all to go to the root.

Answer 1

How about a simple 301 redirect in the apache config file for the subdomain?

To redirect ALL files on your domain use this in your
.htaccess file if you are on a unix web server:

redirectMatch 301 ^(.*)$ http://www.domain.com 
redirectMatch permanent ^(.*)$ http://www.domain.com

and another example

If you need to redirect http://mysite.com to
http://www.mysite.com and you’ve got mod_rewrite enabled on
your server you can put this in your .htaccess file:

EDIT: If you want to use this, just remove the $1 from the rules in the sample link provided if the first option above does not work.

Options +FollowSymLinks
RewriteEngine on
RewriteCond %{HTTP_HOST} ^example\.com
RewriteRule ^(.*)$ http://www.example.com/ [R=permanent,L]

or this:

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

These excerpts from here