Recently, I set up a full Active Directory (AD) lab environment through VMware Workstation in order to practice internal penetration testing techniques. Building this lab from the ground up gave me the chance to configure domain controllers, create users and groups, and simulate a real-world enterprise network. Having this controlled environment has been invaluable for experimenting with different attack paths and learning how adversaries might exploit misconfigurations and weaknesses within an AD environment.
Working inside this lab has given me hands-on insight into techniques such as privilege escalation, lateral movement, credential harvesting, and persistence within a Windows domain. I’ve been able to see firsthand how a single weak configuration can lead to broader compromise across the network, and just as importantly, how defensive measures can mitigate these attacks. This type of practical experience has deepened my understanding of not just the offensive side, but also the importance of hardening systems and applying proper security controls.
Overall, building this Active Directory lab has been a game-changer in my learning journey. It has allowed me to bridge the gap between theory and practice while preparing me for both: the PJPT exams & real-world scenarios. I’d highly recommend anyone looking to strengthen their internal penetration testing skills to build their own AD lab—it’s one of the best ways to gain practical, hands-on experience in a safe and controlled environment.