Category Archives: Active Directory

Articles on Microsoft Active Directory Domain Services: domain controllers, upgrades, replication and the protocols AD clients depend on.

Diagram comparing three Domain Controller upgrade strategies - in-place upgrade, DC replacement and swing side-by-side - rated by downtime and rollback risk

How to Upgrade a Domain Controller: DC Replacement and Swing Upgrade Scenarios

Posted on 2025-12-04 by Aleksandr Reznik

In this article, I will describe the process of upgrading a Microsoft Active Directory Domain Controller (DC). Specifically, I will focus on scenarios where it is necessary to upgrade the Continue Reading →

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