Ok, I figured out that I need to set my server name to myserver.homeip.net. Now I'm getting in the logs
Jun 25 13:37:42 quicktrav dyndns.org: homeip.net does not exist on the dyndns.org system.
What else could be wrong? Also where is dyndns.org called from? I took a look around ip-up, etc but couldn't find it
Alex