How to always remove WWW from a url with mod_rewrite?

Question

I'm using the following to try and remove WWW from the url:

RewriteCond %{HTTP_HOST} ^example.com$ [NC]
RewriteRule (.*) http://example.com$1 [R=301]

But for some reason it doesn't work. Any suggestions?

Answer 1

Try:

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

And without mod_rewrite:

<VirtualHost 10.0.0.1:80>
        ServerName www.example.com
        Redirect permanent / http://example.com/
</VirtualHost>

Virtual hosts can be used by completing the steps in the following URL: Setting Up A Virtual Host in Apache.

Answer 2

Here’s a more generalized solution:

RewriteCond %{HTTP_HOST} ^www\.(.+) [NC]
RewriteRule ^ http://%1%{REQUEST_URI} [L,R=301]