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Migrating Active Directory Domain Controller Domain Server Migration (2003 ,2008 ,2012, 2016)

by admin
June 14, 2020
152
Migrating Active Directory Domain Controller

Migrating Active Directory Domain Controller

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Domain Server Migration  (2003 2008 2012 2016)

Migrating Active Directory Domain Controller

 

 

CHECKLIST:

What is the name of the domain?

What is the ip of the window server 2003 domain controller?

What OS the domain function level on window server 2003?

Is both servers can ping each other?

 

PHASE 0

I am preparing the Windows server 2008

Setup static ip address

Setup dns ip address

Set up computer name

Uncheck the ipv6 in properties.

Test connectivity

Run DCPROMO now before preparing active directory…….

 

-àrun àDCPROMOàuse advance optionànextàExisting Forest (add a domain controller to an existing domain àNextàenter the name of domain controller (domain)select alternate credentialàsetàenter server administrator username and passwordànextà

 

Now need to run adprep first on win2003 server (old server)

 

 

PHASE 1

Preparing the active directory schema

Raise the function level of domain controller from native to 2003 (active directory user and AD domain trust)

Run adprep32 from window server 2008 DVD on old server:

/forestprep

/domianprep

/rodcprep

 

Enter the 2008R2 DVD and select the path of adprep32.exe

 

Run command prompt as administrator

àD: (DVD ROM Drive Letter e.g. D)

D:\>cd (enter the path of adprep32.exe)

D:\adprep32.exe /forestprep

D:\adprep32.exe /domianprep

D:\adprep32.exe /rodcprep

 

Once above command is completed successfully move to window server 2008 (New Server)

 

PHASE 2

Promote windows server 2008 as a domain controller/

Run DCPROMO on window server 2008

Choose existing forest and additional controller.

Verify the installation.

 

Select both DNS and Global Catalog option

nextàyesàselect replace data over the network with existing domain controller optionànextàselect use this specific domain controllerànextànextàput restore passwordànextànextàfinishàrestart the domain.

 

Now login with server user name and password on window server 2008

 

PHASE 3

Transfer FSMO roles

PDC master

RID master

Infrastructure master

Domain naming master

Schema master

And register schmmgmt.dll

Go to AD users and computersàright click on domain nameàoperation masteràChange RID, PDC and Infrastructure to new server.

 

Go to AD Domain and Trustà Go to AD Domain and Trustàoperation masteràdomain naming space masteràchange to new server.

 

Go to runàcmdàregsvr32 schmmgmt.dllàok

Type mmcàfileàadd or remove snapàad schemaàaddàokàright click on active directory schema optionàchange directory schema serveràselect new domain controlleràokàok.

Right click on Active directory Schemaàoperation masteràchange schema masteràok.

 

Now cross check all the FSMO roles status on the window server 2008. It must be registered with new server.

 

 

PHASE 4

Demote windows server 2003 server

Run dcpromo

Don’t check is the last server on the domain.

 

CLEANUP PHASE

Remove windows server 2003 account

Delete record from dns zone for old server name from new server

Delete account from active directory sites and services.

Unjoin the old server from the domain to workgroup.

Delete the old computer name from window server 2008 domian controller list.

 

NTDSUTIL

Ntdsutil

Ntdsutil : metadata cleanup

Metadata cleanup : connections

Server connections : connect to server  prologic.asiana

Server connections : quit

Metadata cleanup : select operation target

Select operation target : list domain

Select operation target : select domain 0

Select operation target : list sites

Select operation target : select  site 0

Select operation target : list servers in site

Select operation target : select server 2

Select operation target : quit

Metadata cleanup : remove selected server (yes if it is showing two server)

 

 

IP CHANGE PROCESS

192.168.1.1

IPconfig /flushdns

Ipconfig /registerdns

Repadmin

Dcdiag.exe

DOMAIN RENAMING PROCESS

Run repadmin command.

Step 1

Syntax: netdom computername <currentDC FQDN> /add:<newDCName FQDN>

C:\>netdom computername serverdc1.lab.local /add:

serverdc21.lab.local

Run repadmin command

Use Adsiedit

Step 2

netdom computername <currentDC FQDN> /makeprimary:<newDCName FQDN>

C:\>netdom computername serverdc1.lab.local /makeprimary:

serverdc21.lab.local

the computer object attribute msDS-AdditionalDnsHostName will now have the value of the original Domain Controller name, in the above example serverdc1.lab.local.

Reboot the Domain Controller.

 

Step 3

Syntax: netdom computername <newDCName FQDN> /remove:<oldDCName FQDN>

Example:

C:\>netdom computername serverdc21.lab.local /remove:

serverdc1.lab.local

run repadmin, dcdiag /fix etc to replicate the data.

 

——————————————————Finish Successfully——————————————————–

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