What is Group Policy and How Does It Work?
As a system administrator, one of the most powerful tools I use to manage and secure a Windows environment is Group Policy. It allows me to control the working environment …
🔐 Bulk Windows Activation with KMS: What I Did and How It Works?
As a system admin, one of the common tasks I handle is activating Windows across multiple machines in an organization. If you’re managing a business network, activating each machine individually …
🔐 Managing Local Admin Passwords Securely with LAPS in Windows Server 2025
Introduction As a Windows Server admin, one of my top priorities is keeping systems secure—especially when it comes to local administrator accounts. That’s where LAPS (Local Administrator Password Solution) comes …
Securing Exchange OWA/ECP with a Self-Signed Certificate from Enterprise CA
🔧 Overview By default, Exchange Server uses a self-signed certificate for OWA (Outlook Web App) and ECP (Exchange Control Panel). However, this cert is not trusted by clients, leading to …
How to Restrict Domain Join Permission in Active Directory?
Introduction In many Active Directory environments, any authenticated domain user can join up to 10 computers to the domain by default. While this might be convenient, it poses a security …
🛡️ How I Secured ADSelfService Plus Web Server with an Internal CA Certificate
When deploying ADSelfService Plus in an enterprise environment, one of the first things I wanted to do was replace the default self-signed SSL certificate with a certificate issued by our …
How I Installed and Configured Active Directory Certificate Services (AD CS)
To set up my internal Certificate Authority (CA), I installed and configured Active Directory Certificate Services on my domain-joined Windows Server. Here’s how I did it: ✅ Prerequisites: 🔹 Step: …
Installing Exchange Server 2019 on Windows Server 2025
Today, I’m sharing my step-by-step process for installing Exchange Server 2019 on Windows Server 2025. While Exchange 2019 is the latest on-premises version from Microsoft, pairing it with the newer …
Active Directory Backup and Recovery: A Beginner’s Guide
As a system administrator, I know how critical Active Directory (AD) is to the health and security of any Windows-based network. If AD goes down or gets corrupted, it can …
Active Directory Management Basics: What Every Sysadmin Should Know
🧩 Step 1: Open Active Directory Tools 👤 What is a User in Active Directory? A user in Active Directory represents a person, service, or application that needs access to …