Troubleshooting Domain Controller Connectivity Issues for Junior Engineers!

Introduction Whether you’re just starting your career in IT or already providing support for Active Directory (AD), troubleshooting domain controller connectivity issues is always a challenge. When something goes wrong in AD, it can trigger a wide range of problems—like users being unable to log in, Group Policies not applying, or authentication failures. Unfortunately, even … Read more

How to Troubleshoot Active Directory Replication and Domain Controller Health

In any Windows-based environment setup, Active Directory (AD) is the core system for managing user identity, access, and login authentication. To keep AD environment running smoothly, two things are very important: replication and the health of Domain Controllers (DCs). If replication fails or DCs are not set up properly, it can cause problems like inconsistent … Read more

Active Directory Replication Overview

 When it comes to an Active Directory environment, AD replication is important and critical. Changes made on one domain controller are replicated across other domain controllers, either within the same AD forest or domain. This process is important for maintaining consistency in user data (attributes), group policies, and other directory objects throughout the organization’s network. … Read more

Always On Availability Groups (AG) in SQL Server: Ensuring High Availability and Disaster Recovery

Introduction Always On Availability Groups (AG) is a high-availability and disaster recovery (HADR) solution in Microsoft SQL Server. It ensures database protection by replicating data across multiple SQL Server instances, providing failover capabilities, and maintaining continuous availability. This feature is ideal for mission-critical applications that require minimal downtime and seamless recovery.  Breakdown of the architecture … Read more

Understanding Group Policy Preferences (GPP)

Introduction Group Policy Preferences (GPP) are a powerful feature in Windows that allow administrators to configure various settings for users and computers in a Windows domain. Unlike regular Group Policy settings, Preferences provide a more user-friendly and flexible way to manage configurations. This article explains what GPP is, how to use it, and the differences … Read more

Comprehensive Beginner’s Guide to DNS (Domain Name System)

Introduction In today’s digital age, the internet is an important part of our daily lives. From searching for information to shopping, communicating, and streaming, the internet is our go-to tool. But have you ever wondered how your device knows exactly where to find the websites you visit? The answer lies in the Domain Name System … Read more

Understanding RAID Levels: Performance, Redundancy, and Use Cases

Introduction In today’s digital world, storing data is crucial for everyone, whether you’re an individual or a business. As the volume of data increases, ensuring its safety, accessibility, and speed becomes critically important. One of the most common ways to manage data efficiently is through RAID (Redundant Array of Independent Disks) technology. RAID combines multiple … Read more

Key Steps to Resolve Active Directory Problems

Introduction. This article offers a guide to diagnosing and resolving common Active Directory (AD) issues. While it doesn’t cover advanced troubleshooting, the goal is to provide a clear understanding of how and when to identify specific problems, along with effective steps to resolve them 1) Check AD Services. What it means: Active Directory runs on … Read more

Ghost Actors: Understanding the Ransomware Threat, Exploited Vulnerabilities, and Mitigation Strategies

Introduction As the world rapidly advances, cybercrime is evolving at an alarming rate. Every day, organizations across the globe fall victim to these digital attacks. Among the most devastating cyber threats are ransomware attacks, where attackers lock or encrypt a victim’s data, demanding a ransom in exchange for restoring access. In recent years, the frequency … Read more

Verify Network Ports on a Domain Controller

1. Introduction In this article, we’ll explore script that tests the connectivity of various TCP and UDP ports on a domain controller. The script is useful for Domain Administrator / Windows Administrator/ Network administrators or system engineers to troubleshoot network connectivity, verify that critical ports are open, and ensure that services like DNS, LDAP are functioning … Read more