Rewrite (Apache)

É necessário ter o módulo mod_rewrite habilitado.

RewriteEngine   on
RewriteCond %{HTTP_HOST} ^www\.(.+) [NC]
RewriteRule ^ http://%1%{REQUEST_URI} [R=302,L,NC]

RewriteEngine on
RewriteCond %{HTTPS} off
RewriteRule (.*) https://%{SERVER_NAME}%{REQUEST_URI} [R=302,L,NC]