01 — Linux beginner map

Learning objectives

• Name boot → userspace pieces that matter on a foothold (kernel, PID 1, shell, /proc)
• Run a quiet enum loop: who/where/what can I run?
• Abuse one simple privesc class (SUID / writable cron) before tool spam

Intuition

On a box you already have a shell on, you are answering: where am I, who am I, what is misconfigured, what is noisy? Architecture is the map; Action Items 1–2 are the hands.

Friend path (do this)

1. Skim architecture — observe commands only
2. AI1 System enum [Beginner] — stop after Phase 4–5 once
3. AI2 SUID/capabilities [Beginner] — one win, document it
4. Labs below

Park for later