Active Directory Migration from Windows Server 2012 R2 to Windows Server 2022

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Active Directory Migration from Windows Server 2012 R2 to Windows Server 2022

1. Prepare

- DC11 : Domain Controller(Yi.vn) running Windows Server 2012 R2 | DC24 : Workgroup running Windows Server 2022

2. Step by step : Active Directory Migration from Windows Server 2012 R2 to Windows Server 2022

- DC24 : Install an Additional Domain Controller and transfer FSMO from DC11

+ Join to Yi.vn - Restart server

+ Server Manager - Manage - Add Roles and Features - Next to Server Roles - Select 'Active Directory Domain Services' + DNS - Add Features

- Next and Install - Close

+ Click Notifications - Click 'Promote this server to a domain controller' - Select 'Add a domain controller to an existing domain'

- Type the Directory Services Restore Mode (DSRM) password : Enter Password and Confirm password - Next to Install - Restart

+ Logon use account Yi\administrator - Start - cmd - Type : nltest /dclist:Yi.vn === Check Domain Controllers

+ Start - cmd, type : netdom query fsmo # check server has installed FSMO roles

+ Tranfer RID Master, PDC Emulator, and Infrastructure Masters :

+ Server Manager - Tools - Active Directory Users and Computers - Right-Click Yi.vn - Operations Masters... :

+ Tag RID : click Change... - Yes + Tag PDC : click Change... - Yes + Tag Infrastructure : click Change... - Yes

+ Tranfer Domain Naming Master :

+ Server Manager - Tools - Active Directory Domains and Trusts

- Right-Click 'Active Directory Domains and Trusts[DC24.Yi.vn]' - Operations Masters... - Click Change... - Yes

+ Tranfer Schema Master

+ Start - cmd, type : 'regsvr32 schmmgmt.dll' - mmc - File - add/Remove Snap-in... - Select 'Active Directory schema' - add - ok

- Right-Click 'Active Directory schema[DC11.Yi.vn]' - Change Active Directory Domain Controller... - Change to : Seclect DC24.Yi.vn - ok

- Right-Click 'Active Directory schema[DC24.Yi.vn]' - Operation Masters... - Click Change - Yes - Close

+ Start - cmd, type : netdom query fsmo # show server holding FSMO Roles is DC24 - OK

- DC11 : Demote Domain Controller

+ Server Manager - Manage - Remove Roles and Features - Server Roles : Untick 'DNS Server' + 'Active Directory Domain Services'

- Remove Features - Demote this domain controller - Credentials : Tick 'Force the removal of this domain controller' - Next

- Warnings : Tick 'Proceed with removal' - New Administrator Password : Enter password and confirm - Demote - Restart

- DC24 : Check Domain Controllers again

+ Point DNS to DC24(10.0.0.24)

+ Server Manager - Tools - Active Directory Users and Computers - Yi.vn - Domain Controllers - Right-Click DC11 - Delete

- Tick 'Delete this Domain Controller anyway. ...' - Delete - Yes

+ Server Manager - Tools - Active Directory Sites and Services - Sites - Default-Fist-Site-Name - Servers - Right-Click DC11 - Delete - Yes

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