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Lynis

Hardening Audit · Beginner

Audit Linux systems for hardening opportunities.

Knowledge reference only. Prefer in-browser Labs first. Use this tool only on systems you own or have written authorization to test.

What to learn

  • Core workflow and interface
  • Reading and interpreting output
  • Key configuration options
  • Integrating into a professional workflow

Legitimate use

Lynis is used by professionals for legitimate defense, testing and research.

Official docs →

Example commands (lab VMs only)

  • sudo lynis audit system
    Safe example against your own lab data or localhost