domain controllers don't communicate to each other

  • Thread starter Thread starter Steve
  • Start date Start date
S

Steve

I have 2 domain controllers in a small simple network.
They do not "talk" to each other. The Active Directory
Computers and Users snap-in on 'DC1' doesn't even show
a 'DC2', and the snap-in on 'DC2' shows a red 'minus
sign' next to 'DC1'. Is there a way to get these talking
to each other again? If I demote one of the servers and
then repromote it to a domain controller, will (should?)
they sync up? (I actually started to demote one of the
dc's but was receiving errors, presumably because the
setup is no good).
 
This will be a DNS error.

Check your DNS config. Where's it pointing? What type of
DNS are you running? Does your DNS server allow dynamic
updates?

One thing you could try is this (on DC2):

- at the command prompt type ipconfig /flushdns
- make sure DC2 is set to point to DC1 for DNS (or the
DNS server, but not itself)
- at the command prompt type net stop netlogon
- at the command prompt type net start netlogon

Wait 5 mins.


Paul.
 
Steve,

Is the DNS information correct on both DCs? This is where I would start
looking. Have you had the chance to run both netdiag and dcdiag on both of
these DCs? These two utilities are from the Support Tools. The Support
Tools are located in two places: on the WIN2000 Server CD in the Support |
Tools folder and on the WIN2000 Service Pack CD also in the Support | Tools
folder.

But, first things first: can you ping the DC1 from DC2? Can you ping DC2
from DC1? via IP Address? via NetBIOS Name? via FQDN? Also, try an
nslookup yourdomain.com.

HTH,

Cary
 
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