Took a while to get it working. You get the data from https://freedns.afraid.org/dynamic/v2/?style=2 (v1 is not usable with ddclient). Also, the "native" backend is crucial, otherwise it will not work.General settings:Backend: NativeService: customProtocol: DynDNS 2Server: sync.afraid.orgUsername/Password: Your FreeDNS username/passwordHostname(s): Your FreeDNS FQDN thereCheck IP Method: FreeDNSInterface to monitor: WANForce SSL: ticked