proxy_http_version 1.1;
proxy_set_header Connection "";
proxy_set_header Host $host;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_set_header X-Forwarded-Proto $scheme;
proxy_set_header X-Forwarded-Port $server_port;
proxy_hide_header X-Powered-By;
proxy_hide_header Server;

proxy_pass_request_headers on;
proxy_ssl_name ${NGX_IDS_HOSTNAME};