Review request: DNS server implementation

[tridge at samba.org]

 > Just my 2c.
 > We automated the installation of bind + our ldap backend in freeipa
 > pretty easily. Granted it would have to be adjusted to fit other
 > distributions due to where they place files, but that is simply a matter
 > of making some paths in the python scripts a variable.

simply a matter ... yes, I thought this, till I started trying to
actually do it!

It's the kerberos part that is the killer. It's just really
flakey. I've working on patches to improve it, but it will still be
less than ideal.

Cheers, Tridge