Linux Security Challenge Prep

Filesystem, users, groups, permissions, packages, services, firewall, logs, and full hardening checklist for CyberPatriot.

Level: Intermediate
Grade band: 9–12
Time: about 8 hours

Unit 1 — Linux Fundamentals

Filesystem, Users & Permissions

  • Filesystem navigation and key directories — 18 min (coming soon)
  • Users, groups, and /etc/passwd — 22 min (coming soon)
  • File permissions and chmod/chown — 22 min (coming soon)

Unit 2 — Services & Hardening

Packages, Services & Hardening

  • Package management and applying updates — 18 min (coming soon)
  • Managing services with systemctl — 18 min (coming soon)
  • UFW firewall configuration — 20 min (coming soon)

Unit 3 — Investigation & Competition

Logs, SSH & Competition Strategy

  • Log analysis and auth.log — 20 min (coming soon)
  • SSH hardening and /etc/ssh/sshd_config — 20 min (coming soon)
  • Full hardening checklist and competition strategy — 25 min (coming soon)

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