
Master enterprise authentication with 15+ hands-on labs covering PAM, U2F/FIDO2, Active Directory integration, and Ansible automation
π Expected release: March 2026 | Available on Amazon KDP & LeanPub
Most Linux sysadmins treat PAM as a "black box" - copying config snippets from StackOverflow without understanding the security implications. When things break (and they will), you're locked out with no idea how to fix it.
This course teaches you PAM from first principles, then builds up to advanced scenarios like:
15+ practical exercises with Vagrant/Docker environments included. Learn by doing, not just reading.
Real enterprise patterns, not toy examples. Battle-tested configurations from actual deployments.
Ansible roles that follow Red Hat Community of Practice standards. Deploy with confidence.
The ONLY book covering hardware token integration in depth. Go beyond passwords.
RHEL, Debian, Ubuntu tested configurations. Works across major distributions.
Active Directory, Smart Cards, centralized logging. Real business requirements.
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Expected release: March 2026
π Available on: Amazon KDP (Kindle/Paperback) & LeanPub (DRM-Free PDF/EPUB)
π While you wait, check out the free resources below

Miguel AlpaΓ±ez Alcalde is a systems engineer specializing in Linux security and enterprise authentication. He has implemented PAM-based authentication systems for organizations across Europe.
A: No, but you should be comfortable with Linux command line and basic system administration.
A: RHEL 8/9, Debian 12, Ubuntu 22.04/24.04. Most concepts apply to any distro.
A: No, the U2F labs are optional. All core PAM concepts work without hardware.
A: The book contains educational examples. For production use, see the malpanez.security collection.
A: LeanPub version receives free updates. Amazon KDP follows a fixed edition model.
A: Amazon: 7 days. LeanPub: 60-day happiness guarantee.