StopCore

http {

        upstream cluster {

            # simple round-robin
            server 192.168.0.1:80;
            server 192.168.0.2:80;

            check interval=5000 rise=1 fall=3 timeout=4000;

            #check interval=3000 rise=2 fall=5 timeout=1000 type=ssl_hello;

            #check interval=3000 rise=2 fall=5 timeout=1000 type=http;
            #check_http_send "HEAD / HTTP/1.0\r\n\r\n";
            #check_http_expect_alive http_2xx http_3xx;
        }

        server {
            listen 80;

            location / {
                proxy_pass http://cluster;
            }

            location /status {
                check_status;

                access_log   off;
                allow SOME.IP.ADD.RESS;
                deny all;
           }
        }

    }