Category Archives: Active Directory Domain Services

Active Directory Domain Services

How to fix time synchronize issue on virtual Domain Controller with a incorrect time source

This article will explain how to fix time sync issue on Hyper-V virtual domain controller. Normally domain controllers in the domain use the PDC as their central time source. However, a Hyper-V virtual DC would normally synchronize time with it’s hyper-v host instead of PDC. This would cause time difference between virtual DC and other… Read More »

Active Directory health check

I am going to list down some key areas which need to be covered in any Active Directory health check: Replication health: A healthy replication is important for any Active Directory infrastructure. All domain controllers in the infrastructure need to be aware of every change to the Active Directory database. There are tools and techniques… Read More »

FSMO Roles in Active Directory

There are five flexible single master operations (FSMO) roles in the Active Directory infrastructure. Each of them will be performing specific Active Directory tasks that other domain controllers in the infrastructure are not permitted to perform. These five FSMO roles are divided into two categories based on their operation boundaries: Forest Level> Schema operations master>… Read More »

Secure Channel in Active Directory

What is Secure Channel in AD? In Windows AD environments, secure channel provides an encrypted way of communication between clients and domain controllers. By clients I mean different editions of operating systems including client’s operating systems like Windows 10/8/7/vista/XP or server operating systems which operate as Domain Controllers or member servers. In another word when… Read More »

Item-Level Targeting in Group Policy

Item-Level Targeting with Group Policy Preferences Item-level targeting is a one of the feature of Group Policy preferences that allows preference settings to be applied to individual users and/or computers within the scope of the Group Policy Object (GPO) that contains the preferences. Policy settings can also be filtered, but there are several important differences… Read More »