Problem in configuring Priamry DNS

[Masoud]

Situation:
----------
Office A:
PDC (Win2k), DNS (AD integrated), Exch.2k
NIC: (only one NIC)
IP : xxx.xxx.243.18 (public IP)
DNS: xxx.xxx.243.18 (this machine)

Office B:
BDC (Win2k)
NIC: (only one NIC)
IP : 192.168.111.2
GW : 192.168.111.1
DNS: 192.168.111.1

- The two offices are connected via VPN.
- Primary DNS currently at ISP "X"
- Internet connectivity of both offices via ISP "Y" over
(DSL)

Problem:
--------
I want to have my DNS as primary server and my ISP's (Y)
as secondary. I added the name and IP of both DNSs in the
Name Servers Tab, allowed zone trasfer for all, and other
stuffs.
However there are two problems preventing my ISP to
activate my DNS:
1) The nslookup lists the name-server of ISP(which should
be the secondary one) on top of my name-server (even on my
DNS machine)
2) nslookup mydomain.com returns the private IP of BDC
prior to the public IP of PDC.

Can anybody help me resolving these problems?

 

[Deji Akomolafe]

OK, I don't think you want your ISP's DNS server anywhere in your internal
AD picture.

The only exception, IMO, is when you use your ISP's DNS servers for
Forwarding. Don't point any of your servers or clients to your ISP DNS in
TCP/IP, don't add your ISP DNS servers to your NameServers list. Don't play
with matches

HTH
Deji

 

[Masoud]

Actually no computer in my netwrok points directly to DNS
of ISP but the DNS Server computer and Gateway computer
which is not member of the domain.

The error my ISP encountered is as follows:
"The number of nameservers of the application is different
from those of the primary nameserver dc.mydoamin.com"
There are only two servers listed in Name Servers Tab:
-the domain controler machine (my DNS server)
-the ns of ISP

What I cannot understand is why the DNS of ISP replies
faster than mine, whereas the query is run on my
machine?!!!

I forgot to tell that my ISP has a Unix (or Linux) DNS
System.