How to redirect all HTTP requests to HTTPS

Question

I\'m trying to redirect all insecure HTTP requests on my site (e.g. http://www.example.com) to HTTPS (https://www.example.com). I\'m using PHP btw.

Answer 1

If you're using an Amazon Web Services Elastic Load Balancer which accepts https traffic and routes it to your server(s) with http, the correct way to redirect all http traffic to https is described here: https://aws.amazon.com/premiumsupport/knowledge-center/redirect-http-https-elb

Use the X-Forwarded-Proto header (contains http or https) which is always included in http requests from the load balancer, as described here: https://docs.aws.amazon.com/elasticloadbalancing/latest/classic/x-forwarded-headers.html

In the httpd.conf file:

RewriteEngine On
RewriteCond %{HTTP:X-Forwarded-Proto} =http
RewriteRule .* https://%{HTTP:Host}%{REQUEST_URI} [L,R=permanent]

Or in your root .htaccess file:

RewriteEngine On
RewriteCond %{HTTP:X-Forwarded-Proto} =http
RewriteRule .* https://%{HTTP:Host}%{REQUEST_URI} [L,R=permanent]

Bonus: it will not try to redirect http traffic on your local development machine.