server {
        listen       80;
        server_name  1.iamle.com 2.iamle.com 3.iamle.com;
        location /{
        proxy_pass                  http://8.8.8.8:83;
         proxy_redirect off;
         proxy_set_header Host $host;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
                     }
        }