Sets real ip from private networks.

nginx.conf

@@ -12,6 +12,10 @@ http {
   default_type application/octet-stream;
 
   server {
+    set_real_ip_from  10.0.0.0/8;
+    set_real_ip_from  172.16.0.0/12;
+    set_real_ip_from  192.168.0.0/16;
+    real_ip_header  X-Forwarded-For;
     listen 80;
     
     # Add headers to serve security related headers