server {

        listen 80 default_server;
        listen [::]:80 default_server;

        listen 443 ssl default_server;
    	  listen [::]:443 ssl default_server;

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

        server_name _;

        return 404;

        location /.well-known/acme-challenge {
                default_type "text/plain";
                root /var/www/letsencrypt-auto;
        }

}