transfer DNS

[Ace Fekay [MVP]]

In

hi
I have 3 DC and one of them is DNS. all the workstations are
hard-coded IP and points to the DNS.
I want to remove the DC which hold the DNS and move the DNS to one of
the other DC. can or should I change the new server address to be like
the old server (the one I want to remove)? or should I go over all the
workstations (about 500) and deckare new DNS address?
Are there any suggestions?

regards,

Uzi

Sure you can.

During an off-production day (such as a weekend), move DNS first to the
other server. Whatever method you use would be fine to do this. If the zone
is AD Integrated, then that's even easier. You can also use the
Primary/Seconday method and let the transfer happen then make it a Primary.

Once you;ve done that, then change the IP addresses first of the two DCs.
Swap them. Then in DNS make sure the IP change is reflected. If not, you can
manually force registration for IP and SRVs:
ipconfig /registerdns
net stop netlogon
net start netlogon

This will allow now all your clients to use the same DNS IP.

Then to remove the DC, best practice dictates to manually move the FSMO
roles to the other DCs. If the server you want to get rid of is the GC, move
that to another server FIRST. DCPROMO will actually move the FSMO roles for
you, but may not optimize their locations for you. If you need more info on
optiomization, post back.

Then once all that is done, and confirmed that the FSMO roles (if you did it
manually) have been moved to the other servers, then run DCPROMO and demote
the machine properly. If you don't demote it properly, other errors *WILL*
occur.

--
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

 

[uzi-m]

hi
I have 3 DC and one of them is DNS. all the workstations are hard-code
IP and points to the DNS.
I want to remove the DC which hold the DNS and move the DNS to one o
the other DC. can or should I change the new server address to be lik
the old server (the one I want to remove)? or should I go over all th
workstations (about 500) and deckare new DNS address?
Are there any suggestions?

regards,

Uz

uzi-