Glad this helped your resolve your issue.
If you look at NGINX documentation it will describe the headers that may get added. In particular the X-Real-ip header which is described at https://docs.nginx.com/nginx/admin-guide/web-server/reverse-proxy/
If you look at NGINX documentation it will describe the headers that may get added. In particular the X-Real-ip header which is described at https://docs.nginx.com/nginx/admin-guide/web-server/reverse-proxy/