HowTo migrate DNS Zones


i have an old UCS 4.4.7 running i want to get rid of.

I have now installed a fresh 5.0-1 and would like to migrate the DNS (Forward and Reverse Lookup) Zones from my old UCS to my new one.

Whats the best way to do that?

I dont want to upgrade my ucs 4.4.7 since i have done a lot of messy stuff with it and i just want to start fresh and clean with a new install.