設定 Nginx 只允許區網連線

location / {
  # First attempt to serve request as file, then
  # as directory, then fall back to displaying a 404.
  #try_files $uri $uri/ =404;

  allow 192.168.0.0/24;
  deny all;

  proxy_pass http://127.0.0.1:3000;
  proxy_set_header Host $host;
  proxy_set_header X-Real-IP $remote_addr;
  proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
  proxy_set_header X-Forwarded-Proto $scheme;
}