tnb0/nginx/conf.d/default.conf

server {
    listen 80 default_server;
    server_name _;
    return 403;
}

server {
    listen 443 ssl default_server;
    server_name _;

    ssl_certificate /etc/nginx/ssl/nginx.crt;
    ssl_certificate_key /etc/nginx/ssl/nginx.key;
    return 403;
}