Hi Kai,
thanks for your reply.
After you setup your dyndns account, you add Address name.dyndnsdomainname.tld in your torrc, replacing the address name with the hostname, you have chosen in your DynDNS account settings.
Okay. What about OutboundBindAdress, does that have to be set?
For the IP <-> dyndns domain name update/resolution you install and configure one of the DynDNS update clients. I'm using ddclient under Ubuntu*.
I have this already setup with dd-wrt, so no problem there.
Thanks,
Sina