Resource Library by Topic
Overview
External training courses, references, and practice platforms, organized by the same topics used throughout this roadmap.
How it works
IT & Hardware Fundamentals (A+)
Operating Systems (A+)
- Professor Messer — A+ Core 2 (220-1102) free training course
- OverTheWire — Bandit wargame (Linux command-line practice)
Networking Fundamentals
Security Concepts & Principles (Sec+)
Threats, Attacks & Vulnerabilities (Sec+)
Cryptography & PKI
- Cloudflare Learning — What is a cryptographic key?
- Cloudflare Learning — What is SSL?
- Cloudflare Learning — How does public key encryption work?
Security Architecture
- AWS Well-Architected Framework — AWS-specific
- Microsoft Cybersecurity Reference Architecture (MCRA) — Microsoft-specific