LoadModule rewrite_module modules/mod_rewrite.so
<IfModule mod_rewrite.c>
RewriteEngine on
RewriteLog "/opt/apache2/logs/domain/rewrite.log
RewriteLogLevel 9
Options +FollowSymlinks
RewriteCond  %{HTTP_HOST} 	!^www\.domain\.com  [NC]
RewriteCond  %{HTTP_HOST}	!^$
RewriteRule  ^/(.*)	http://www.domain.com/$1 [L,R]