How to Update Duck DNS IP From a UniFi Device

It’s very helpful to have devices on your network reachable through a dynamic dns service without having to pay for it. Follow this short tutorial to setup IP updates from your UniFi router to the Duck DNS service:

  1. Register at duckdns.org and add a domain
  2. Log in to to UniFi management interface on unifi.ui.com (or your local webinterface) and choose the “Network” app.
  3. Go to Settings > Internet and click on your WAN interface
  4. In the Section “Dynamic DNS” click “Create New Dynamic DNS”
  5. Choose the following options:
    Service: dyndns
    Hostname: your “domain” from duckdns.org
    Username: nouser
    Password: nopassword
    Server: www.duckdns.org/update?domains=%h&token=yourtoken
    ℹ️ replace yourtoken with your token from duckdns.org
  6. Save
  7. Check your domain on Duck DNS: the “current IP” value should now be the same as your WAN IP from the UniFi router.

I am using it on our company’s Ubiquiti UniFi Dream Machine SE.