AD Domain ServicesArchitecture & DesignDirectory Objects & Identity Data

ADUC: Complete Guide to Active Directory Users and Computers for Windows Server Admins

March 29, 2026
ADUC, or Active Directory Users and Computers, is the Microsoft Management Console snap-in used to manage core Active Directory objects such as users, groups, computers, and organizational units. In Windows Server environments, it is the primary native tool for day-to-day identity administration, especially for IT admins and helpdesk teams responsible for account lifecycle tasks. What Is…
Read more
AD Domain ServicesOperations & TroubleshootingReplication, Sites & Domain Controllers

Force AD Replication for User Synchronization Issues: Commands, Validation, and Troubleshooting

March 18, 2026
When a user change does not appear on other domain controllers, the right question is not just “how do I force sync?” but “what exactly needs to replicate, from which DC, and is replication actually healthy?” Active Directory replication depends on DNS resolution, RPC/network connectivity, authentication and authorization, time accuracy, replication topology, and the AD DS database engine.
Read more
AD Domain ServicesAutomation & ToolingOperations & TroubleshootingPowerShell for AD DS

Create email aliases & retrieve user mail info in AD

March 18, 2026
Admins often say “add an email alias in Active Directory,” but that phrase hides an important distinction. Active Directory stores identity attributes. Exchange and Exchange Online turn those attributes into mail-enabled behavior. So the right procedure depends on whether you are working with an Exchange Online mailbox, an on-prem Exchange recipient, or just raw AD attributes with no supported…
Read more
AD Domain ServicesArchitecture & Design

Federation strategies using Entra

December 19, 2025
Federation is still a critical tool in hybrid identity—but the “best” federation strategy depends on what you’re trying to achieve: modern SSO for SaaS, partner access, legacy app support, or a phased retirement of AD FS. This guide explains practical federation patterns using Microsoft Entra ID, how to choose between them, and how to implement them safely. …
Read more
AD Domain ServicesArchitecture & Design

Zero Trust architecture with Entra at the core

December 19, 2025
Zero Trust Architecture with Microsoft Entra at the Core Zero Trust is not a product you “turn on.” It’s an operating model for security where every access request is treated as hostile until proven otherwise. The big shift is psychological and architectural: you stop trusting network location (VPN, office LAN, “inside”) and you start trusting verified identity +…
Read more
AD Domain ServicesArchitecture & Design

How to detect Golden Ticket attacks

November 14, 2025
How to Detect Golden Ticket Attacks in Active Directory A Golden Ticket attack is one of the most damaging post-compromise techniques in Active Directory: an attacker forges a Kerberos Ticket Granting Ticket (TGT) using the KRBTGT account secret, then impersonates any user (often Domain Admin) to access domain resources while blending into “normal”…
Read more
AD Domain ServicesArchitecture & Design

Simulating AD attacks with Purple Team labs

November 14, 2025
Purple teaming in an Active Directory (AD) context is the discipline of running controlled, authorized attack simulations (red) while observing, tuning, and validating detection + response (blue). Done well, it turns vague goals like “improve AD security” into measurable outcomes: which attacks did we detect, how fast, with what signal quality, and what changed because of it. This guide…
Read more
AD Domain ServicesAuthentication & Protocols

Identifying unsecure SPN configurations

October 31, 2025
Identifying Insecure SPN Configurations in Active Directory (Detection + Fix Runbook) Service Principal Names (SPNs) are a core part of how Kerberos knows which service you’re trying to reach and which account should decrypt the service ticket. That also makes SPNs a high-signal control point for both security and reliability: weak service-account hygiene, legacy…
Read more