[mod_rewrite] Apacheでhttps通信を強制する方法

Apacheではmod_rewriteを使用してhttps通信を強制することができる。
「httpd.conf」に以下の記述を追加してapacheを再起動すればOK。

RewriteEngine on
RewriteCond %{SERVER_PORT} !^443$
RewriteRule ^/(.*) https://%{HTTP_HOST}/$1 [NC,R=301,L]

参考記事

Is it bad to redirect http to https?

I just installed an SSL Certificate on my server. It then set up a redirect for all traffic on my domain on Port 80 to redirect it to Port 443. In other words...

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