This is a quick way to deny an ip address accessing your nginx server.
Create a new file in /etc/nginx/conf.d called blockips.conf
Add the following to the file:
deny <bad ip>;
Then restart nginx. The log file will now show 403’s for the IP address.
For more info see:
http://www.cyberciti.biz/faq/linux-unix-nginx-access-control-howto/
I can’t believe its that simple, oh well got my stuff working thanks.