DCs and DDNS problem

[hoyoung at us.ibm.com]

Farid,

Sounds like your environment is close to mine.  I'm hoping you or others
can help me figuring out what I am doing wrong here.

I have successfully set up the first DC (not a DNS server). But I'm having
trouble setting up the second DC.

Problems: When I try to setup the second DC (DC2.example.com), w2k
complains that can't find domain name "example.com".  I want to setup DC1
and DC2 so that they can synchronize and back up each other.

What I have:

parent domain "example.com" is on server dns1.example.com  running
bind8.1.2.  Static only.  In the parent zone file, I have:
     $ORIGIN     example.com.
     @         IN SOA   .....
                IN NS    dns1.example.com.
                IN NS    dns2.example.com.
                IN A     10.10.5.5
                IN A     10.10.5.6
     DC1  IN   A    10.10.5.5
     DC2  IN   A    10.10.5.6
     _msdcs    IN   NS   dns2.example.com.
     _tcp      IN   NS   dns2.example.com.
     _udp      IN   NS   dns2.example.com.
     _sites    IN   NS   dns2.example.com.
     dns2      IN   A    10.10.5.7

w2k subdomains (_msdcs.example.com, _tcp.example.com, _udp.example.com,
_sites.example.com) are on a server dns1.example.com  running bind8.2.2p5,
doing dynamic update.  On this server, I have the four zones
(_msdcs.example.com.zone, _tcp.example.com.zone, _udp.example.com.zone,
_sites.example.com.zone) and I have allow updates configured to allow the
two DCs to do updates to these zone files.

DC1.example.com and DC2.example.com are pointing to the static parent
domain for resolution.  I have also turned off the Netlogon A
Registrations.


Could anyone tell me what I'm doing wrong?
Thanks

Hannah Day