VPC: Set Network ACL and Security Group Rules

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Tasks

• [ ] Make services in private subnet, only ELB and EC2 in public subnet.
• [ ] Make EC2 only SSH can access from public.

Reference

• AWS Single VPC Design
• What is the difference between security groups and the network access control list in AWS?
• Internet Gateways
• VPC with Public and Private Subnets (NAT)