Force Using https Instead of http Ubuntu 14.04

The main idea for this forcing is redirect your http://yourdomain.com to https://yourdomain.com. This tutorial use apache web server. To do this, follow this step:

1. Open your web server configuration

2. nano /etc/apache2/sites-available/000-default.conf

3. Add this line before </VirtualHost>

Redirect permanent / https://yourdomain.com

4. Save and restart your apache

service apache2 restart

Sumber:
https://wiki.apache.org/httpd/RedirectSSL