Adding Synology DDNS service provider
Getting joker.com as dynamic dns provider.
I've been extremely pleased with Synology NAS device and its DSM software. Of course there are always small things that might annoy a bit, but then it is built on top of Linux and is quite easy to hack with.
By default DSM doesn't have joker.com as a DDNS service provider. Following changes get you up and running with joker.com as well. Fortunately no new provider modules need to be written, since the DynDNS module works fine.
ssh to the NAS and edit /etc.defaults/ddns_provider.conf
To the bottom of the file add new entry
[Joker.com] modulepath=DynDNS queryurl=svc.joker.com/nic/update?username=__USERNAME__&password=__PASSWORD__&myip=__MYIP__&hostname=__HOSTNAME__
Save the file, connect to DSM admin interface and you'll have new service provider in the DDNS section.