Originally Posted by aidwiz
1- can i just skip creating nameservers for those 2 domains and just ns1.dyndns.com and ns2.dyndns.com instead?
Your DynDNS domains are handled by the DynDNS name servers automatically, so you don't have to worry about DNS at all (as long as your router updates the records). So you don't have to configure your own name servers.
No, it will be without www because you registered test1.mine.nu and test2.mine.nu, not www.test1.mine.nu
. This is a difference.