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1) One default ACL will be listed, and just rename it in your own way

2) Set Inbound Rules

STEP 11. Create Load Balancer

https://ap-northeast-2.console.aws.amazon.com/ec2/v2/home?region=ap-northeast-2#LoadBalancers:sort=loadBalancerName

Required for scalable service design. You will need to assign VPC Availability Zone that you created at STEP 2 like below:

Image Added

STEP 10. Creating instances

1) Launching  Instances → Choose an AMI (Amazon Machine Image) → Free Tier only (if you are new)

...

6) Download key Pair for secure connection → Launch Instances

STEP 11. Create Load Balancer

https://ap-northeast-2.console.aws.amazon.com/ec2/v2/home?region=ap-northeast-2#LoadBalancers:sort=loadBalancerName

Reference: https://www.youtube.com/watch?v=gUesnoDzNr4