DynDNS on a Synology NAS: step-by-step setup
Synology's DSM lets you add a custom DDNS provider so your DiskStation stays reachable under a permanent hostname. With DNS Beacon your NAS follows your changing IP automatically. Here's the configuration.
Step by step
- Open the admin interface of your Synology NAS and go to Control Panel → External Access → DDNS → Add.
- 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
Control Panel → External Access → DDNS → Add
- Provider:
- Custom
- Hostname:
- myhouse.dnsfollowme.uk
- Username:
- your email address
- Password:
- your API key
- Server URL:
- https://api.dnsbeacon.com/nic/update?hostname=__HOSTNAME__&myip=__MYIP__
- IPv6:
- DSM 7: placeholder __MYIPV6__ — append &myipv6=__MYIPV6__ to the server URL (drop &myip=__MYIP__ on DS-Lite). Older DSM versions do not know the placeholder.
IPv4 or IPv6?
The values above update the IPv4 address (A record) — the normal case on connections with their own public IPv4. For IPv6 (AAAA record) the device sends the parameter &myipv6=<IPv6> in addition or instead. How to do that on this device is in the "IPv6" row of the table.
DS-Lite or CGNAT (many cable and fibre connections): the router then has no public IPv4, and the service rejects a private WAN address with "abuse". In that case send only myipv6 — or use the DNS Beacon client directly on the target device, which detects both address families itself.
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