praveenkumar@zohocorp.com

GPO Fundamentals Group Policy & Endpoint Policy

Group cleanup scripts with usage analysis

October 17, 2025

Group cleanup scripts with usage analysis Active Directory group sprawl is not just “messy directory hygiene”—it directly affects access risk, troubleshooting time, audit outcomes, and even authentication performance at scale. The hard part isn’t deleting groups; it’s proving that a group is no longer needed, and doing it without…

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…

Service account design in architecture (gMSAs etc.)

October 3, 2025

Service Account Design in Architecture (gMSAs, SPNs, Delegation, and Real-World Patterns) Service accounts are rarely “just accounts.” They’re long-lived identities that sit at the junction of authentication (Kerberos vs NTLM), authorization (AD ACLs), and operational reliability. That combination makes them both critical and dangerous: …

Forest/domain consolidation vs maintaining separation

October 3, 2025

Forest/Domain Consolidation vs Maintaining Separation (Active Directory) A comparison for Active Directory architecture decisions. In modern enterprises, Active Directory (AD) remains the backbone of identity and access management. As organizations expand through mergers, acquisitions, or organic growth, they often end up with multiple forests or…

Site replication tuning and SRV record importance

October 3, 2025

Site Replication Tuning and SRV Record Importance: Why It Matters Active Directory (AD) relies on two critical mechanics to function smoothly across distributed environments: site replication tuning and SRV (Service) record management. Replication ensures domain controllers share consistent data, while SRV records in DNS help clients and…

Global catalog placement for large enterprise sites

October 3, 2025

Global Catalog Placement for Large Enterprise Sites The Global Catalog (GC) in Active Directory (AD) is more than a simple directory service role. It is the index that lets users, applications, and domain controllers (DCs) quickly find what they need across an entire forest. If you need a refresher on what a GC is and how it behaves, see Global Catalog…

Arun Kumar

Group cleanup scripts with usage analysis

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

Service account design in architecture (gMSAs etc.)

Forest/domain consolidation vs maintaining separation

Site replication tuning and SRV record importance

Global catalog placement for large enterprise sites

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