server {
      listen 80 default_server;
      listen [::]:80 default_server;
      server_name www.my_domain123.com my_domain123.com;
      return 301 https://$server_name$request_uri;
  }

  server {
    listen 443 ssl;
    listen [::]:443 ssl;

    server_name localhost my_domain123.com;
    return 301 https://www.my_domain123.com$request_uri;
  }

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

      server_name www.my_domain123.com;

      ssl_certificate /etc/letsencrypt/live/www.my_domain123.com/fullchain.pem;
      ssl_certificate_key /etc/letsencrypt/live/www.my_domain123.com/privkey.pem;

      # .................