AD Domain Services Archives - Page 2 of 23

AD Domain Services Authentication & 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…

Detecting unauthorized domain replication

October 31, 2025

Unauthorized domain replication is one of the fastest ways for an attacker to turn “some access” into “total access.” If someone can trigger directory replication (or abuse replication rights) they can extract credential material (including password hashes) and move laterally at scale—often without noisy malware on domain controllers. What “unauthorized…

Mitigating unconstrained delegation vulnerabilities

October 31, 2025

Mitigating Unconstrained Delegation Vulnerabilities in Active Directory Unconstrained delegation is one of those “it worked in 2006” features that becomes a high-impact breach path in modern AD environments. This guide gives you a field-ready plan to find it, remove it safely, migrate to better models (constrained delegation / RBCD), and set…

Handling expansion and consolidation of OUs during M&A

October 17, 2025

Handling expansion and consolidation of OUs during M&A Mergers and acquisitions are where “good enough” Active Directory design gets stress-tested. Organizational Units (OUs) sit right at the fault line: they encode administration boundaries, policy application, onboarding/offboarding workflows, and sometimes a company’s entire way of thinking about…

Role-based access control (RBAC) using AD groups

October 17, 2025

Role-based access control (RBAC) using AD groups Role-based access control (RBAC) is the idea that people don’t get permissions because of who they are, but because of what they do. In Windows environments, Active Directory (AD) groups are the most common “glue” used to map job roles to permissions across file shares, apps, databases…

AD indexing explained—what admins need to know

October 3, 2025

AD Indexing Explained — What Admins Need to Know Active Directory indexing is one of the most overlooked yet critical aspects of directory performance. As AD grows to thousands—or millions—of objects, searches and lookups can slow dramatically if the right attributes aren’t indexed (or if too many are). In simple terms, AD…

Certificate consolidation for AD domain controllers

October 3, 2025

Certificate Consolidation for AD Domain Controllers: What You Need to Know Active Directory (AD) remains the backbone of identity, authentication, and authorization in most enterprise Windows environments. Within this ecosystem, domain controllers (DCs) rely heavily on digital certificates to prove their identity, encrypt communications, and establish…

How to design AD for Zero Trust: Practical first steps

October 3, 2025

Designing AD for Zero Trust: Practical First Steps Designing AD for Zero Trust (practical first steps) means reshaping your on-premises Active Directory (AD) so that every access request is explicitly verified, least-privileged, and resilient to compromise. Zero Trust is a security model that assumes no implicit trust—inside or outside your network—and continuously validates identity…

Trust management: transitive vs external trusts

October 3, 2025

Trust management in Active Directory: transitive vs external trusts Trusts are where “directory design” turns into “security reality.” A single trust decision can either enable clean collaboration or quietly expand your blast radius across domains and forests. This guide focuses on the difference that matters most in…

Secure admin enclaves: isolating DC administrative access

October 3, 2025

Secure admin enclaves: isolating DC administrative access If your Domain Controller admin credentials touch “normal” endpoints, assume they’ll eventually be stolen. Secure admin enclaves exist to make that theft dramatically harder—and to limit blast radius when something still goes wrong. What is a secure admin enclave? A secure admin…

AD Domain Services

Identifying unsecure SPN configurations

Detecting unauthorized domain replication

Mitigating unconstrained delegation vulnerabilities

Handling expansion and consolidation of OUs during M&A

Role-based access control (RBAC) using AD groups

AD indexing explained—what admins need to know

Certificate consolidation for AD domain controllers

How to design AD for Zero Trust: Practical first steps

Trust management: transitive vs external trusts

Secure admin enclaves: isolating DC administrative access

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