Facebook login authentication

They have to be set up to allow https (SSL communication).

I heard that I can uncomment the extension openSSL in php.ini of apache, but I can't do it even after restarting apache.
Uncommenting ssl_module in httpd.conf does not work.

Why?

Maybe this is the right place?
http://blog.playispeace.com/521/sakura_vps_openssl_install/
http://memorva.jp/memo/linux/openssl.php

Is it better this way?
http://socialmedia.project0884.com/facebook/get_token_server.php

Maybe this is the right place?
http://fb.dev-plus.jp/reference/coreconcepts/authentication/user-login/

No, this is it!
http://blog.stella-design.jp/?p=40