I read in the change log that version 3.8.0 has support of multiple ip addresses, but I cannot find any documentation on how to do this. I'm running a server with two WAN connections (eth1 and eth2) and would like to designate which ip/interface updates which hostname without running a second instance of ddclient.
I was just looking for the same information. I also have two external interfaces that I would like to setup.
I didn't had the time to update the documents but this could be a good start: https://sourceforge.net/mailarchive/message.php?msg_id=20080924120754.GA15984%40astaro.com