How to automatically redirect http to https in Apache

I will share 2 ways to achieve this:

1. Using mod_rewrite. Add these directives to your configuration file:

RewriteEngine On
RewriteCond %{SERVER_PORT} !^443$
RewriteRule ^/(.*) https://%{SERVER_NAME}/$1 [L,R]

2. Using Redirect. Add these directives to your configuration file:
   

   SSLRequireSSL
   Redirect permanent /secure https://www.domain.com/secure

References:
Joseph Scott’s Blog
KarKomaOnline