Synology NAS  Synology NAS

Synology NAS(Network Attached Storage) does not have Dynu in its default dynamic DNS service provider list. But you can add Dynu to the list with very simple steps.

If your device supports it, you can add a custom DDNS provider by going to: Control Panel > External Access > Customize and entering the following:

Service Provider: Dynu.com
Query URL: http://api.dynu.com/nic/update?hostname=__HOSTNAME__&username=__USERNAME__&myip=__MYIP__&password=__PASSWORD__
Otherwise, all you need to do is to SSH into the NAS and edit /etc.defaults/ddns_provider.conf file. Add the following entry to the file and save it.

[Dynu.com]
modulepath=DynDNS
queryurl=api.dynu.com/nic/update?hostname=__HOSTNAME__&username=__USERNAME__&myip=__MYIP__&password=__PASSWORD__

You will then see Dynu.com in the service provider dropdown list in DDNS section of the NAS.

Synology NAS Dynu Dynamic DNS


  • Enable DDNS support : check the checkbox
  • Service Provider : Dynu.com
  • Hostname : enter your hostname, for example, example.dynu.com or example.com
  • Username : enter your Dynu username, which could be found in 'Contact Details' in the control panel
  • Password : enter your Dynu password or IP update password, MD5 hash of the password is also accepted