A Domain Controller (DC) in Windows Server is a server that responds to security authentication requests within a Windows domain. It plays a crucial role in managing network security and user access.

Update March 22: Microsoft has released emergency out-of-band (OOB) updates to fix this known issue. The March 2024 Windows Server updates are causing some domain controllers to crash and restart ...

Supporting remote branch offices while securing sensitive information is a difficult balancing act. Now, with the availability of Windows Server 2008, new technologies allow IT managers to deploy ...

Read-only domain controllers (RODCs) are a new feature of the Active Directory Domain Services (AD DS) in the Windows Server systems. They represent a fundamental change to how you'd typically use ...

In a Windows release health dashboard update posted Friday, the company said that, after a restart, “Windows Server 2025 domain controllers (such as servers hosting the Active Directory domain ...

If your organization wants to fully take advantage of the read-only domain controller, there are plenty of considerations that go with setting up this new feature of Windows Server 2008.

If The system cannot contact a domain controller to service the authentication request when connecting to a server, here are working fixes!

Windows Server How-To. Pinpoint Windows Server Domain Controller Issues with the DCDiag Tool . Having issues with domain controllers? Use this native tools to pinpoint exactly where it.

Answer to bonus question from last week: In a single domain Windows Server 2012 R2 forest each domain controller should be configured as a global catalog server. About the Author Andy Barkl, MCT/MCITP ...

Microsoft is investigating LSASS memory leaks (caused by Windows Server updates released during the November Patch Tuesday) that might lead to freezes and restarts on some domain controllers.