How to install a SSL certificate

Hello. My web is www.con-textoskantianos.net Now we are in cloudflare in order to activate the ssl, but when I edit config.inc.php and I force the SSL it doesn’t work (ERR TO MANY REDIRECTS)

How can I use SSL certificate in this system?

Thanks

Would this be helpful?

http://forum.pkp.sfu.ca/t/ojs-3-nginx-https-ssl/28636

Hi, I am using apache with cpanel. No access To ssh