[X-Servers] KDC will not run - "Unable to bind to Parent" error?

[Frank Flynn]

> The KDC requires DNS to have both forward and reverse lookups setup
> correctly, did you set up a reverse record?

Yes, well I clicked the little checkbox that said "Create reverse 
record" and that did create a record which was the opposite of the 
first one (fields were reversed).  I tried 'dig' on the name and it 
worked but I never tried to look up the address and see if it got the 
name.

> Here's the bad news, once that KDC fails to start, about the only way
> to fix it is to reinstall OSX Server. Actually, I have not seen a way
> to fix this yet without reinstalling the server operating system. I've
> called several people at Apple and received the same answer.

Hummm - bummer.  Well if I need to do that now would be the time.  It 
seems particularly intransigent right now.

But is there a better guide, something step by step which I could 
follow?  The Apple documentation is light on the specifics, it just 
goes on and on about how many cool things it could do once you got it 
working.

Thanks
Frank