There have been several enhancements and updates since then to make it the stable and secure authentication system in use today. In its infancy, AD had some rather glaring flaws. One DC that could make changes to the domain, while the rest simply fulfilled authentication requests. To resolve that fundamental flaw, Microsoft separated the responsibilities of a DC into multiple roles. Admins distribute these roles across several DCs, and if one of those DCs goes out to lunch, another will take over any missing roles! This means domain services have intelligent clustering with built-in redundancy and resilience.

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To proceed with the transfer of FSMO roles, we consider that DCs that already have a role are active in our infrastructure. Otherwise, if a DC holding a FSMO role is no longer online and operational, then we use the seize method instead of simple transfer. Here, each tab displays the three FSMO roles. If you are not already connected to the DC you are about to transfer the role, then you can do so by clicking Change Active Directory Domain Controller in the same menu.

In the same way, you will see who is the current role holder and by clicking the Change button you can transfer the role to another DC. First, in a command-line window with administrator rights, type the following command to register the AD Schema snap-in.

Here, right click on the icon and then in Operations Masters. You will need to be connected to the corresponding DC you are going to transfer the role you can do through the Change Active Directory Domain Controller option in the menu. For example, to transfer the PDC Emulator. So you can transfer all 5 roles with just one command. For example. Finally, you can confirm that the roles were transferred using the corresponding PowerShell commands.

Type ntdsutil and press Enter. Type roles and press Enter. Type connections and press Enter. Type quit and press Enter. Next, we will transfer FSMO roles one by one with the corresponding command, as the case may be.

After each Enter appears a confirmation window. Just click Yes to continue. For Schema Master, type transfer schema master and press Enter. For Domain Naming Master, type transfer naming master and press Enter. For Infrastructure Master, type transfer infrastructure master and press Enter. Related posts:.


Determine which DCs hold the FSMO roles

Domain naming master — Forest-wide and one per forest. RID master — Domain-specific and one for each domain. Infrastructure master — Domain-specific and one for each domain. In most cases an administrator can keep the FSMO role holders all 5 of them in the same spot or actually, on the same DC as has been configured by the Active Directory installation process. However, when the original FSMO role holder went offline or became non operational for a long period of time, the administrator might consider moving the FSMO role from the original, non-operational holder, to a different DC. Since none of the FSMO roles are immediately critical well, almost none, the loss of the PDC Emulator FSMO role might become a problem unless you fix it in a reasonable amount of time , so it is not a problem to them to be unavailable for hours or even days.

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Transferring FSMO Roles from Windows 2008 R2 to Windows Server 2016

While coming back from my last Microsoft Ignite The Tour stop - I had some time to kill waiting for my connection. I thought I would dust off some of my Active Directory admin skills and document the quick and dirty process of upgrading your Active Directory from R2 over to the latest version of Windows Server I have also added in a Windows Server member server which will serve as my new Domain Controller once I have promote it to host Active Directory and transfer the FSMO flexible single masters of operation over. This is a purposely simple lab and write up. Install Active Directory on a Windows Server member server This is easy enough, login to your WS server with an account that has Domain Admin rights and Enterprise Admin rights on the member server.


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