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Intermediate 20 min readModule: Module 10: Cloud Computing Fundamentals (AWS & GCP)

Cloud Architecture (AWS VPC, IAM & CDN)

Design secure cloud networks with Virtual Private Clouds (VPCs), subnets, IAM least privilege roles, and CDNs.

What You Will Learn in This Lesson

  • VPC architecture: Public subnets vs isolated Private database subnets
  • Security Groups and Network Access Control Lists (NACLs)
  • IAM (Identity and Access Management) Principle of Least Privilege

Introduction & Core Concept

Cloud platforms like AWS and Google Cloud provide scalable on-demand compute, storage, database, and networking services.
WHY DOES THIS MATTER IN THE REAL WORLD?

Placing databases inside private subnets without public internet IPs prevents 99% of automated external scanning attacks.

Secure Cloud Subnet Architecture

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Internet Gateway -> Public Subnet (Load Balancer & NAT Gateway) -> Private Subnet (App Servers) -> Isolated Subnet (PostgreSQL)

Line-by-Line Technical Breakdown

1IAM roles grant temporary credentials to EC2 and ECS instances without hardcoding secret keys.

Try It Yourself (Interactive Editor)

Modify the code in real-time and click Run to test live browser output and console logs.

Intelligent Code Runner & Live Sandbox[TEXT]
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Interactive Live Code

Industry Best Practices & Professional Standards

  • Never grant '*' admin access in IAM policies; adhere strictly to least privilege.

Lesson Summary & Core Takeaways

  • Secure cloud architectures separate public ingress from private data layers.