intermediate~2h

EC2 Security Groups & Networking

How traffic to and from an EC2 instance is controlled — Security Groups, public vs private IPs, and the VPC context an instance lives in.

2
Subtopics

🎓 Learning objectives

  • Explain how Security Groups differ from a traditional firewall (stateful vs stateless)
  • Configure a Security Group that follows least-privilege networking
  • Explain the difference between a public IP, private IP, and Elastic IP
  • Explain why placing a database in a private subnet, not a public one, matters

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📂 Subtopics

Related concepts

ec2-fundamentalsiam-fundamentalsauto-scaling-load-balancing

Next Step

Continue to Auto Scaling & Elastic Load Balancing