server {
listen 80 default_server;
listen [::]:80 default_server;
server_name _;
location / {
return 444;
}
}

server {
#sudo openssl req -x509 -nodes -days 36500 -newkey rsa:2048 -keyout /etc/ssl/private/nginx-selfsigned.key -out /etc/ssl/certs/nginx-selfsigned.crt
listen 443 ssl default_server;
listen [::]:443 ssl default_server;
server_name _;

ssl_certificate /etc/ssl/certs/nginx-selfsigned.crt;
ssl_certificate_key /etc/ssl/private/nginx-selfsigned.key;

location / {
return 444;
}
}

server {
listen 80;
server_name example.com
1.example.com
2.example.com;

return 301 https://$host$request_uri;
}