DNS in natted DMZ (private ip)

[Matthew Hellman]

I'm just looking for general information on how I set this up.  I'm new
to bind.  I have a 3-homed firewall.  One interface goes to the
Internet, one to the DMZ and one to the internal network.  I'm thinking
of setting up a split-zone server in the DMZ.  What kind of tom-foolery
will I have to resort to [if any] to get this working on a host with a
private address in the DMZ?  Is it fairly common for a DNS server to be
setup this way?  TIA,

Matt