Lesson 01 — Module Overview

Learning Path

☁️ Phase 2 – AWS Cloud Security

📘 Module 05 – Amazon EC2 Security

🎯 Lesson Objective

By the end of this lesson, you will:

Understand the purpose of Amazon EC2.
Learn why EC2 security is critical.
Understand how EC2 fits into enterprise AWS architectures.
Review the learning roadmap for this module.
Understand the enterprise project you will complete.
Prepare your AWS environment for the upcoming hands-on labs.

📚 Lesson Information

Estimated Time: 30 Minutes

Difficulty: Beginner

Prerequisites: Module 04 – Amazon VPC & Network Security

Hands-on Lab: No

👋 Welcome

Congratulations on completing Module 04 – Amazon VPC & Network Security.

You now know how to build a secure enterprise network using:

Amazon VPC
Public & Private Subnets
Route Tables
Internet Gateway
NAT Gateway
Security Groups
Network ACLs
VPC Endpoints

Now it’s time to place secure workloads inside that network.

This is where Amazon EC2 comes in.

💼 Business Value

Every organisation relies on compute resources to run its business applications.

Examples include:

Customer websites
APIs
Mobile applications
Internal business applications
CI/CD servers
Kubernetes worker nodes
AI and Machine Learning workloads
Security monitoring tools

Most of these workloads run on Amazon EC2.

If an EC2 instance is compromised, an attacker may gain access to:

Customer information
Company applications
Internal databases
AWS credentials
Business secrets

Protecting EC2 instances is one of the most important responsibilities of a Cloud Security Engineer.

🏢 CloudNova Scenario

CloudNova Technologies has completed its enterprise network deployment.

The infrastructure team has successfully delivered:

Enterprise VPC
Multi-AZ architecture
Public Subnets
Private Subnets
Secure networking
Internet connectivity
Private AWS connectivity

The next phase is to deploy secure compute resources.

As a Cloud Security Engineer, your responsibilities include:

Launching secure EC2 instances
Protecting operating systems
Encrypting storage
Managing access
Monitoring servers
Performing patch management
Maintaining compliance

🌍 Where EC2 Fits

CloudNova’s production architecture now looks like this.

                    Internet
                        │
                Internet Gateway
                        │
          Application Load Balancer
                        │
        ┌───────────────┴───────────────┐
        │                               │
 Private Application Servers     Private Application Servers
        │                               │
        └───────────────┬───────────────┘
                        │
                 Amazon RDS Database

──────────────────────────────────────────────

Supporting Services

• IAM
• Systems Manager
• CloudWatch
• CloudTrail
• GuardDuty
• Security Hub

The networking layer protects traffic.

This module focuses on securing the servers running inside that network.

🎯 What You Will Learn

During this module, you will learn how to:

Launch secure EC2 instances.
Configure secure authentication.
Use IAM Roles instead of storing credentials.
Encrypt EBS volumes.
Build secure Amazon Machine Images (AMIs).
Replace SSH with AWS Systems Manager Session Manager where appropriate.
Patch Linux servers.
Monitor servers using AWS security services.
Apply enterprise hardening techniques.
Build production-ready EC2 environments.

📖 Module Roadmap

Lesson	Topic
Lesson 01	Module Overview
Lesson 02	Why Amazon EC2?
Lesson 03	Amazon EC2 Fundamentals
Lesson 04	Launching Secure EC2 Instances
Lesson 05	IAM Roles for EC2
Lesson 06	Amazon EBS Encryption & AMIs
Lesson 07	AWS Systems Manager & Session Manager
Lesson 08	EC2 Hardening & Patch Management
Lesson 09	Monitoring, Logging & Backup
Lesson 10	Enterprise EC2 Architecture
Lesson 11	Enterprise Build Project
Lesson 12	Module Review

🛠 Hands-on Experience

Throughout this module you will perform practical tasks including:

Launching Amazon Linux EC2 instances.
Connecting securely to EC2.
Assigning IAM Roles.
Encrypting EBS volumes.
Creating custom AMIs.
Configuring Systems Manager.
Running patch updates.
Monitoring instances.
Creating backups.
Validating security configurations.

By the end of the module, you will have built a production-style compute environment.

🏗 Enterprise Project Preview

At the end of this module, you will complete a real-world project.

Your environment will include:

                    Internet
                        │
                Application Load Balancer
                        │
        ┌───────────────┴───────────────┐
        │                               │
    Private EC2                    Private EC2
        │                               │
        └───────────────┬───────────────┘
                        │
                  Amazon RDS

──────────────────────────────────────

Supporting Services

IAM Roles

Systems Manager

CloudWatch

Encrypted EBS

CloudTrail

AWS Backup

This mirrors the architecture commonly found in enterprise AWS environments.

💼 Your Role

During this module, imagine you have joined CloudNova Technologies as a Cloud Security Engineer.

Your responsibilities include:

Reviewing server deployments.
Securing operating systems.
Protecting storage.
Managing access.
Monitoring workloads.
Supporting incident response.
Ensuring compliance with company security standards.

Each lesson builds practical skills that are used daily in enterprise environments.

🎯 Success Criteria

By the end of this module, you should be able to confidently:

✅ Launch secure EC2 instances.

✅ Configure IAM Roles.

✅ Encrypt EBS storage.

✅ Create reusable AMIs.

✅ Manage EC2 using Systems Manager.

✅ Secure Linux servers.

✅ Monitor compute resources.

✅ Build production-ready EC2 environments.

🧠 Knowledge Check

Before continuing, consider the following questions:

What is Amazon EC2 used for?
Why is securing EC2 important?
What types of workloads commonly run on EC2?
Why should production servers be deployed in private subnets?
What skills do Cloud Security Engineers need when managing EC2?

You will answer these confidently by the end of this module.

📋 Module Checklist

Task	Status
Reviewed module objectives	☐
Understood CloudNova scenario	☐
Reviewed learning roadmap	☐
Understood enterprise project	☐
Ready to begin Module 05	☐

💡 Key Takeaways

After completing this lesson, you should understand:

Amazon EC2 is the primary compute service used to run applications in AWS.
Securing EC2 instances is a fundamental responsibility of Cloud Security Engineers.
Enterprise security extends beyond networking to include operating systems, storage, identity and monitoring.
This module focuses on protecting compute workloads using AWS best practices and enterprise security principles.
By the end of the module, you will have the knowledge and practical experience to build and secure production-ready EC2 environments.

🚀 Next Lesson

➡️ Lesson 02 — Why Amazon EC2?