Apache Server primary domain jump WWW domain name

In order to focus on the site weight, sometimes we need to go to the WWW domain name to the main domain, or the main domain to jump to www domain name.

How the Apache server implements the primary domain jump WWW domain name:

Open the. htaccess file in the root directory of the Web site. Create a new upload to the root of the Web site

Add code

%{http_host}!^^ (. *) $ HTTP://www. domain name. com/$1 [l,r=301]

Conversely, the same.

Apache Server primary domain jump WWW domain name