AD Expert
Forests, Kerberos internals, advanced GPO, and hardening Active Directory.
What you'll actually learn
This track picks up where a basic Active Directory setup stops being enough — multiple domains under one forest, the actual Kerberos ticket exchange happening behind every "it just works" login, and the GPO settings that decide whether a compromised workstation can pivot into a domain controller. Instead of clicking through wizards, you work through why a trust relationship can be abused, why ticket lifetimes matter, and what a real hardening baseline looks like.
What you'll be able to do
You'll be handed an AD environment with a plausible but dangerous misconfiguration — an overly trusting cross-forest relationship, a GPO that leaves an attack path open — and trace exactly how it could be exploited, then close it the way a real security-conscious admin would, not just by following a checklist someone else wrote.
Syllabus
Frequently asked
Roughly 1 hour across 5 hands-on quests — you can go at your own pace and pick up exactly where you left off.
You should be comfortable with Security: The Foundations, Windows Server & Active Directory first — the skill tree unlocks AD Expert once you've cleared those.
Yes — AD Expert is fully available on the free tier, starting with a free first quest and no payment method required to sign up. Plus and Elite remove pacing limits but don't gate any of the AD Expert curriculum behind a paywall.
Create a free account and begin your first quest — no card required.
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