June 15, 2008
Redirect HTTP requests to the 'www' subdomain
<VirtualHost 11.22.33.44>
# Server name and a single alias without a subdomain prefix.
ServerName www.example.com
ServerAlias example.com
# Redirect to 'www.' subdomain.
RewriteEngine on
RewriteCond %{HTTP_HOST} !^www.example.com [NC]
RewriteCond %{HTTP_HOST} !^$
RewriteRule ^/(.*) http://www.example.com/$1 [L,R]
</VirtualHost>