http {

    server {
        listen 80  default_server;
        server_name _;

        return 404;
    }


    server {
        listen 443 ssl;
        server_name _;

        ssl_certificate /etc/ssl/certs/ssl-cert-snakeoil.pem;
        ssl_certificate_key /etc/ssl/private/ssl-cert-snakeoil.key;

        return 404;
    }

}