Is it possible to make Nginx HttpGeoIPModule use the X_Forwarded IP that is sent via HAProxy? It is currently just using the incorrect server IP, but unsure how I can make Nginx use the X_Forwarded IP.
Have you tried using the RealIPModule and setting the X-Real-IP to X-Forwarded-For
You have to pass --with-http_realip_module during compile time to build the module because it is not built by default.
Sameer's answer is correct.
You'll need to configure and compile Nginx with the --with-http_realip_module option.
Then set the following option in the Nginx configuration:
Where 188.8.131.52 is the IP Address of HAProxy
In HAProxy you'll need the following options:
I found this website helpful: http://www.somerorbay.com/vps-and-dedicated/nginx-behind-haproxy-x-forwarded-for-getting-real-client-ip
Another option is to run HA Proxy in transparent mode, then all IPs will display correctly. Usually a little IP Tables 'mangling' is needed to make it work, but well worth the effort.