Skill
Linux hardening
Least privilege, updates, SSH, firewalls. Defense in boring layers.
Do these first
What you will be able to do
- Disable password SSH in a lab VM
- Explain why root login is a bad default
- List what you would log
Curated resources
Start with the pick, then branch out
Scores are LearnPath editorial opinions (clarity, cost, freshness, project density) — not an objective ranking. Every YouTube item is embedded officially after a click-to-load facade.
Hidden gem
LearnPath pickarticlebeginner
The Linux command line (online book)
William Shotts6h 40m
Free book. Chapters 1–10 cover daily CLI work.
Score 93
Open
23 minLearnPath pickQuick pathyoutube videointermediate
5 Steps to Secure Linux (protect from hackers)
NetworkChuck23 min
Twenty-three minutes of the five changes that remove most easy Linux compromise paths — SSH key-only auth, firewall rules, updates, users, sudo. High impact per minute, and demonstrated on a live server.
Score 76
Watch
30 minMore curatedyoutube videointermediate
AWS Security Explained: Shared Responsibility Model, Compliance and IAM | AWS Tutorial | KodeKloud
KodeKloud30 min
Thirty minutes on the shared responsibility model, IAM, and the misconfigurations that cause most cloud breaches. The clearest short treatment of what security looks like in the cloud.
Score 71
Watch