A single label domain name. How to...

D

Dmitry

Hi.

I have a single label domain name. How can I force update SRV records in DNS
and add new DC in my domain or how to change domain name DOM to DOM.LOCAL
without reinstalling AD (if it's possible. If yes, does it mean I have to
add workstations in renamed domain, or they use NetBIOS domain name which is
not changed?).

In current situation I can add secondary DC seamlessly except the AD
replication fails.
I even tried to add SRV records from system32\config\netlogon.dns manually,
but this changed nothing.
Thanks.
 
A

Ace Fekay [MVP]

In
Dmitry said:
Hi.

I have a single label domain name. How can I force update SRV records
in DNS and add new DC in my domain or how to change domain name DOM
to DOM.LOCAL without reinstalling AD (if it's possible. If yes, does
it mean I have to add workstations in renamed domain, or they use
NetBIOS domain name which is not changed?).

In current situation I can add secondary DC seamlessly except the AD
replication fails.
I even tried to add SRV records from system32\config\netlogon.dns
manually, but this changed nothing.
Thanks.

This is a common problem lately. Many posts on it. Recently (yesterday) I
posted something similar that will apply to you. I copied/pasted it below.
First of all, you can try using
http://support.microsoft.com/?id=300684
for a reg entry to force it to update. Need to do it on your clients too,
but XP won;t work properly. You may still get problems with GPOs applying
since the GetGPOList function onthe client side references the domain FQDN,
such as:
\\domain.com\sysvol\domain.COM\Policies
But when it tries to go to what you have, such as:
\\DOM\etc...
It perceives DOM as a host name, and may not resolve properly.

Here's my other post that may help in resolving this to help rename
it....Read the whole thing so you'll know what's involved.

==========================================
Ace Fekay,
If I were to just rename the domain from CREDENTALS to
CREDENTALS.net and disjoin all the affected workstations from
CREDENTALS and join it to CREDENTALS.net would it reset the user
profiles?

First, you can't just rename a domain, unless you're still in mixed mode
with an NT4 BDC still present. If still in mixed mode, you can add an NT4
BDC, trash the W2k DC, promote the NT4 BDC to a PDC, then manually set the
DNS Suffix in TCP/IP properties to the new domain name, credentials.net,
(which would be the name you choose for the AD DNS domain name, but keep the
NetBIOS domain name as CREDENTIALS for backward capatilibity), then upgrade
it to a W2k DC. This way the machines that are still joined will still be
joined to the same domain.

Otherwise if the domain is in Native mode, you'll need to follow the ADMT
method I previously mentioned.

And no about disjoining and rejoining to the new domain with the old
profiles. When you manually rejoin, a new profile is created. You may find
that you can manually force the new profiles to use the old profile one
machine at a time, but I don;t think that's what you want to do. ADMT will
do that for you.

Keep in mind you want to follow DNS naming methods. One thing I noticed is
you're using uppercase. It's not that it won't work, but to keep things
consistent with DNS RFCs (looks good too), name it credentials.net, not
CREDENTIALS.net.
From what I have read in researching this problem it sure does seem
that single label domains cause lots of problems and sometimes even
questionable and/or slow connections. But, likewise, I have also
read things that lead me to think migrating AD off CREDENTALS and
over to CREDENTALS.net could possibly cause more problems domain wide
than just the one machine I have now. If I ever have to set up a new
domain or rebuild the old one for some reason other than one machine
I'll defiantly use the appropriate formatting (I wasn't the one who
set this up anyway, that guy quit ). For now should the 2
registry entries discussed previously in
http://support.microsoft.com/default.aspx?scid=kb;en-us;300684&FR=1
fix this problem for the one machine?

-Scott Elgram

If the domain is in mixed mode, it will be alot easier for you. If not, the
ADMT will work, but I would read up on it first and test it. I can provide
links if needed. I've migrated quite a few domains and have to say it's the
easier method if the domain is presently in mixed mode. To find the present
mode, rt-click the domain name in ADUC, properties. Look at the bottom of
the general tab.

Also, Kevin has a big point about GPOs and how the GetGPOList function works
when a machine logs on and looks for the GPOs. That reg entry has to be made
system wide....

=================================


--
Regards,
Ace

Please direct all replies to the newsgroup so all can benefit.
This posting is provided "AS IS" with no warranties.

Ace Fekay, MCSE 2000, MCSE+I, MCSA, MCT, MVP
Microsoft Windows MVP - Active Directory
 

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