Windows Server 2012 DVD into the DVD drive of the Windows Server 2008 R2 AD DS
and navigate to the adprep directory.
Install Active Directory on New Domain Controller
Start > Run, enter dcpromo and click
When the Active Directory Wizard opens, click
Domain Controller Type, select
Additional Domain Controller for an Existing
On the Network Credentials screen, enter the domain administrator username
The Additional Domain Controller screen should already be filled
in with the FQDN (Fully Qualified Domain Name).
Accept the database and log location defaults.
Accept the shared System Volume defaults.
Enter the same Restore Mode Admin password that you used for
the root domain controller.
Summary Settings. Active Directory is not configured through NETLOGON.
Reboot after the Active Directory installation is complete.
Repeat these steps for a new alternate domain controller if
Configure Active Directory sites on new domain controller
Move the new domain
controller to the correct sites.
Move Flexible Single Master Operation roles
On the Active Directory Domain Controller that is hosting the role to be
AD Users and Computers, and connect to the
domain controller from which the role needs to be moved.
Right-click under the domain name and select
Under the required FSMO role tab, change the Operations Master to
the designated domain controller.
Open Command Prompt in
administrative mode and type
Open Microsoft Management Console,
File then click
From the left side, under
Available Snap-ins, click on
Active Directory Schema, then click
Add and then click
Active Directory Schema, then click
Change Active Directory Domain Controller....
From the listed Domain Controllers, click on the domain controller
that you want to be the schema master role holder and then click
From the listed Domain Controllers, click on the domain
controller that you want to be the schema master role holder and then click on
In the console tree, right click
Active Directory Schema [DomainController.DomainName], and
click Operations Master...
Change Schema Master page, the current schema master role
holder will be displayed and the targeted schema holder as well. Change, the
schema master holder to the newly added Domain Controller, click
Yes to confirm the role transfer.
The role will be transferred and a confirmation message will be
Redefine the time source
Because the Primary Domain Controller Emulator is moving to another Domain Controller, the
time source must be redefined as either that server or an external time source.
On the server that is currently running the Primary Domain Controller
Emulator, run the following command:
Net time /setsntp: <DNS name of time
To synchronize a member server to the time source, see the
procedure available on the
Assign Global Catalogs
AD Sites and Services.
Connect to the Domain Controller that is designated as the Global
NTDS Settings, click
Global Catalog, and click
Repeat this procedure on all servers.
Configure member servers to point to new DNS servers
In the Network Settings, open the visible network connection.
Enter the new primary and alternate DNS servers.
ipconfig /flushdns from a command prompt.
Verify name resolution by pinging the Unified CCE servers by name.
Ping the Unified CCE domain by name.
Demote current domain controllers to member servers and uninstall DNS
Important: Before demoting domain controllers, make sure that
the replication process from the old domain controllers to the new domain
controllers is complete. Check the directory service with the event viewer to
monitor the status. In a large domain, this process could take 30 minutes or more to complete.
Start > Run,
dcpromo. When the Active Directory Wizard opens,
A dialog box indicating that this server is already a Domain
Controller appears. Click
Next to demote it to a member server.
You are warned and prompted as to whether or not this is the last
server in the domain. Leave the box unchecked and click
The subsequent screens show the progress of the domain controller
Next to finish.
Repeat this procedure for the alternate domain controller.
Start > Settings > Control
Panel > Add/Remove Programs.
Components > Networking Services.
the DNS check box, then click
Directory and DNS
Upgrade the existing
Active Directory in Windows server 2008 R2 SP1 to Windows server 2012 R2 .
In-place upgrade of domain controller Windows Server 2003 to Windows
Server 2012 R2 is not supported, Instead we can migrate the existing Windows
Server 2003 to new Windows Server 2012 R2, see the corresponding Microsoft