Elastic Compute Cloud = Infrastructure as a Service Capabilities:
- Renting virtual machines (EC2)
- Storing data on virtual drives (EBS)
- Distributing load across machines (ELB)
- Scaling the service using an auto-scaling group (ASG)
Note: When rebooting an instance, public IP renews.
Security Groups
Fundamental of network security. They control how traffic is allows into or out of EC2