301 redirect

A 301 redirect is a way to tell a web surfer that a particular page has been permanently relocated to another url. This is the most appropriate way to rename a page of your Web site without loosing or alienating incoming visitors who might still be looking for the old address.

If the change is only temporary you should use a 302 redirect.

The redirect information is stored in your .htaccess file in the following syntax:

Redirect 301 /olddirectory/oldname.html http://www.newdomain.com/newdirectory/newname.html