• Apache Documentation
• Rewrite* Directives (RewriteCond, RewriteOptions, RewriteRule, etc.)
• RewriteRule Examples
• Smart HTTP and HTTPS .htaccess Rewrite
• Upgrade Tips

RewriteEngine On
RewriteCond %{HTTPS} !on
RewriteCond %{REMOTE_ADDR} !^127\.0\.0\.1$
RewriteRule .* https://%{HTTP_HOST}%{REQUEST_URI} [R=301,L,QSA]