Linux Hardening: Measure, Fix, Measure Again

beginner 55 min 3 tasksSubscription

Measure a Linux server with an audit tool, read what it finds, see how an administrator hardens SSH and turns off unused services, then measure again to prove it worked.

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Launch the lab in your browser. Real Kali, Ubuntu and Windows targets, guided step by step. No setup, no VM downloads.

Updated 2026-11-01

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