Active Directory

AD DS – Active Directory Domain Services

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Windows Server 2025 DC Requires AD DS FFL 2016 Minimum

Posted on by Rhoderick Milne [MSFT]
Windows Server 2025 DC Blocked By Unsupported FFL

This is an issue that can appear when trying to introduce a Windows Server 2025 domain controller into an existing Active Directory forest.  You were planning a change, followed the change request process only for it to be torpedoed as the deployment failed.  The installation was blocked because the forest functional level is still set to Windows Server 2012R2. At first glance, this can be confusi… Read the rest “Windows Server 2025 DC Requires AD DS FFL 2016 Minimum”

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Quick Tip – How Do I View The Deleted Objects Container

Posted on by Rhoderick Milne [MSFT]

Windows Server 2008 R2 Active Directory added the AD Recycle Bin feature.  This allowed for an easier way to recover from an “oops” moment when a small number of objects were mistakenly deleted.  The option to perform an authoritative restored remains to recover from mass deletion events.  The AD Recycle Bin can be enabled via the AD Admin Centre or AD PowerShell using the Enable-ADOptionalFeature… Read the rest “Quick Tip – How Do I View The Deleted Objects Container”

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MDI–Assign & Verify Permissions To Deleted Objects Container

Posted on by Rhoderick Milne [MSFT]
Granting Permissins to Deleted Objects Containter for MDI

In Active Directory, the Deleted Objects container is a hidden location where objects reside temporarily after they have been deleted, before they are fully removed by the tombstone or recycle bin process. This container plays a critical role in object recovery and directory hygiene.  By default, permissions on it are limited and the container itself is often overlooked since it is out of sight.

Th… Read the rest “MDI–Assign & Verify Permissions To Deleted Objects Container”

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Unresolved RID 526 and 527 After ADPrep

Posted on by Rhoderick Milne [MSFT]
Unresolved RID 526 and 527 After ADPrep

After preparing AD and installing the first Windows Server 2019 DC into an existing AD environment, it was noted that there were unresolved SIDs listed at the root of the domain.  This was corelated to the AD 2019 upgrade as permissions had been audited and cleaned up prior due to previous issues in the environment.  Previously all DCs were Windows Server 2012 R2 with all updates installed.

After r… Read the rest “Unresolved RID 526 and 527 After ADPrep”