server {
  listen 80 default_server;
  listen [::]:80 default_server;
  listen 443 ssl http2 default_server;
  listen [::]:443 ssl http2 default_server;

  server_name _;

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

  return 444;
}