gistfile1.nginxconf

upstream destico {
  server unix:/tmp/destico.socket fail_timeout=0;
}

server {
    listen       80;
    server_name  localhost;

    root /home/destico/destico-app/current/public;
    access_log /var/log/nginx/destico_access.log;
    rewrite_log on;

    location / {
      proxy_pass http://destico;
      proxy_redirect off;

      proxy_set_header  Host              $host:$proxy_port;
      proxy_set_header  X-Real-IP         $remote_addr;
      proxy_set_header  X-Forwarded-For   $proxy_add_x_forwarded_for;

      client_max_body_size        10m;
      client_body_buffer_size     128k;

      proxy_connect_timeout       90;
      proxy_send_timeout          90;
      proxy_read_timeout          90;

      proxy_buffer_size           4k;
      proxy_buffers               4 32k;
      proxy_busy_buffers_size     64k;
      proxy_temp_file_write_size  64k;
    }

    location ~ ^/(images|javascripts|stylesheets|system)/ {
      root /home/destico/destico-app/current/public;
      expires max;
      break;
    }

}

I would like to be schooled on this code.