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Transfer FSMO From a Failed Domain Controller (Running Windows Server 2019)

1.Prepare

DC31 : Domain Controller(Yi.vn - Primary) # Server down or OS error (Unavailable) IP 10.0.0.31

DC32 : Domain Controller(Yi.vn - Secondary) # Server alive (Available) IP 10.0.0.32

2. Step by step : Transfer FSMO From DC31 to DC32 --------------******************    / microsoftlab   ********************-------------------

DC32 : Transfer FSMO From DC31

Server Manager - Tools - Active Directory Users and Computers - Yi.vn - Domain Controllers OU - Check number of domain controllers

Right-Click Yi.vn - Operations Masters... - RID tab(PDC,Infrastructure) - Change... - Yes === Fail because DC31 error

Set the first DNS is DC32(10.0.0.32)

Start - Windows PowerShell - Right-Click 'Windows PowerShell' - Run as administrator, type :

dsquery server -forest # Check number of domain controllers
netdom query fsmo # Check which domain controller is the owner of FSMO roles (all at DC31)
regsvr32 schmmgmt.dll # Register the Active Directory schema management library

Start - Right-Click 'Command Prompt' - Run as administrator, type :

Ping DC31.Yi.vn or 10.0.0.31 === Fail

ntdsutil # Seize the roles from a failed DC31 using NTDSUTIL tool

ntdsutil : roles

fsmo maintenance : connections

server connections : connect to server DC32

server connections : q

fsmo maintenance : seize naming master # seize naming master role

fsmo maintenance : seize infrastructure master # seize infrastructure master role

fsmo maintenance : seize rid master # seize rid master role

fsmo maintenance : seize schema master # seize schema master role

fsmo maintenance : seize pdc # seize pdc role

fsmo maintenance : q

ntdsutil : metadata cleanup

metadata cleanup : connections

server connections : connect to server DC32

server connections : q

metadata cleanup : select operation target # List the existing Active Directory sites

select operation target : list sites

select operation target : select site 0 # Site Yi.vn

select operation target : list servers in site

select operation target : Select server 0 # Select DC31

select operation target : list domain

select operation target : select domain 0 # Select Yi.vn

select operation target : q

metadata cleanup : remove selected server

Server Manager - Tools - Active Directory Sites and Services - Sites - Default-First-Site-Name - Servers - Right-Click DC31 - Delete - Yes

Windows PowerShell, type : netdom query fsmo # Check which domain controller is the owner of FSMO roles (all at DC32) === OK