Keeping your Nginx limit_* Anti-DDoS behind CloudFlare's servers

[itpp2012]

A simple test from here:
http://hg.nginx.org/nginx-tests/rev/4e6d21192037
passes and works as it should even with the basic version, also have a look
at: 
http://serverfault.com/questions/409155/x-real-ip-header-empty-with-nginx-behind-a-load-balancer

Posted at Nginx Forum: https://forum.nginx.org/read.php?2,269502,269568#msg-269568