Setup Nginx as reverse proxy server

#user  nobody;
worker_processes  1;


events {
    worker_connections  10240;
}

http {
    include       mime.types;
    default_type  application/octet-stream;

    log_format  main  '$remote_addr - $remote_user [$time_local] "$request" '
                      '$status $body_bytes_sent "$http_referer" '
                      '"$http_user_agent" "$http_x_forwarded_for"';

    #access_log  logs/access.log  main;

    sendfile        on;
    #tcp_nopush     on;

    #keepalive_timeout  0;
    keepalive_timeout  65;

server {
listen       Internet_IP:80;
server_name   Internet_FQDN;
 
access_log  logs/access.log  main;
error_log  logs/error.log debug;
rewrite_log on;

root   html;
index  index.html index.htm;

large_client_header_buffers 4 32k;   #added by Stanley 20140415

  location / {

proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_set_header        Host            $http_host;

proxy_max_temp_file_size 0;
client_max_body_size    10m;
client_body_buffer_size 128k;
proxy_connect_timeout   90;
proxy_send_timeout      90;
proxy_read_timeout      90;
proxy_buffers           32 4k;
proxy_pass http://internal_IP:7980/;      
  }
  
}

}


Reference 1:
http://www.cyberciti.biz/tips/using-nginx-as-reverse-proxy.html

Reference 2:
http://www.cyberciti.biz/faq/howto-linux-unix-setup-nginx-ssl-proxy/