DynDNS on OPNsense: step-by-step setup
OPNsense handles Dynamic DNS through the os-ddclient plugin, which supports any custom DynDNS2 provider. With DNS Beacon your firewall stays reachable under a permanent hostname even when your WAN IP changes. Here's the setup.
Step by step
- Open the admin interface of your OPNsense and go to Services → Dynamic DNS → Settings.
- Enter the values below. Your username is your account email, your password is an API key from the dashboard.
- Save the settings. Your hostname now updates automatically whenever your IP changes — usually within a minute.
Settings to enter
Services → Dynamic DNS → Settings
- Service type:
- Custom
- Server:
- api.dnsbeacon.com
- Username:
- your email address
- Password:
- your API key
- Hostname:
- myhouse.dnsfollowme.uk
Install the os-ddclient plugin first (System → Firmware → Plugins) and pick the Custom service — it sends standard DynDNS2 updates to /nic/update.
Need a free hostname first?
Create a free DNS Beacon account, add a hostname and generate an API key — then come back and finish the setup above.
Create free account