Internal DNS problems and w2k DNS

[Roy Lawson]

I am running in mixed mode. I have an NT4 BDC that runs DNS for our
websites. I have Active Directory / DNS used for internal resolution
on a Windows 2000 domain controller and a Windows 2003 domain
controller (PDC emulator).

I am by no means a DNS genious, but every morning when I get back in
the office I am unable to resolve any websites that are listed on our
public DNS server. I am able to reach those websites from an external
location (like home). In otherwords, the public DNS server works
fine.

In order to resolve this, I simply clear the cache on the 2000/2003
servers and it is up and running again internally.

Any ideas on what could be causing this?

-Roy

 

[Kevin D. Goodknecht [MVP]]

In Roy Lawson <[email protected]> posted a question
Then Kevin replied below:
: I am running in mixed mode. I have an NT4 BDC that runs DNS for our
: websites. I have Active Directory / DNS used for internal resolution
: on a Windows 2000 domain controller and a Windows 2003 domain
: controller (PDC emulator).
:
: I am by no means a DNS genious, but every morning when I get back in
: the office I am unable to resolve any websites that are listed on our
: public DNS server. I am able to reach those websites from an external
: location (like home). In otherwords, the public DNS server works
: fine.
:
: In order to resolve this, I simply clear the cache on the 2000/2003
: servers and it is up and running again internally.
:
: Any ideas on what could be causing this?
:
: -Roy

Does the Win2k DNS have copies of the NT4 zones?
Are both of these DNS servers behind NAT? Behind the same NAT?

 

[Roy Lawson]

Does the Win2k DNS have copies of the NT4 zones?
Are both of these DNS servers behind NAT? Behind the same NAT?

I am not behind NAT (small network, everyone with public IPs) but will
soon be implementing it. The Win2k DNS does not have a copy of the
NT4 zone. All the servers are on the same subnet.

Thanks for the reply.

-Roy

 

[Kevin D. Goodknecht [MVP]]

In Roy Lawson <[email protected]> posted a question
Then Kevin replied below:
:: Does the Win2k DNS have copies of the NT4 zones?
:: Are both of these DNS servers behind NAT? Behind the same NAT?
::
:
: I am not behind NAT (small network, everyone with public IPs) but will
: soon be implementing it. The Win2k DNS does not have a copy of the
: NT4 zone. All the servers are on the same subnet.
:
: Thanks for the reply.
:
: -Roy

If you don't have a copy of the zones on Win2k then it has to use recursion
to find the domains on the NT4. You probably should have a secondary copy on
the Win2k if you convert to private IPs with NAT you'll have to put a copy
of the zones on the Win2k.