Originally Posted by till
My recemmendation is to use virtualisation, e.g. have two vm's for dns only and attach these vm's as mirrored slaved to your master server. This has also benefits in security.
Till, I agree on the virtualisation method. Eats a couple of IP but is much cleaner. I am running MyDNS on my front servers and this has been a solid setup over the years (I guess it saved a lot of trouble during the bind problematic years).
I do plan to use mydns on both auth servers again. Would you discourage such a setup?