[Ddclient-support] Startup at boot

[Koenraad L. <ddc...@de...>]

Hi,
Since I started with ubuntu server 20.04, ddclient does not start when I 
reboot. I can systemctl start ddclient without problems.
systemctl list-unit-files reports :
T
UNIT FILE                                  STATE           VENDOR PRESET
ddclient-not.service                       generated       enabled
ddclient.service                           generated       enabled

What can I do to let ddclient start automatically at boot ? Is this the 
'generated' state that's not OK, other services are mostly 'eneabled'. 
But I use amavis and fetchmail, also 'generated', and those start OK.

TIA,
Koenraad.