Firewalls, NAT & Network Security Basics — Keeping Traffic In and Threats Out

⏱️ 12–14 min read · 🎯 Beginner → Intermediate · 📚 Part 8 of 10 👉 Missed Part 7? Routing & Switching Explained 🤔 Why Network Security Is a Core DevOps Skill You built your EC2 instance. You deploye