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AWS: Security Best Practices on AWS by Albert Anthony

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VPC Security

AWS VPC essentially carries out the task of moving IP traffic (packets) into, out of, and across AWS regions; so, the first line of defense for a VPC is to secure what traffic can enter and leave your VPC. All resources can communicate with each other within a VPC unless explicitly configured not to do that, so this leaves us primarily with securing communication outside of your VPC with resources inside your VPC and vice versa.

AWS VPC provides multiple features for securing your VPC and securing resources inside your VPC, such as security groups, network ACL, VPC Flow Logs, and controlling access for VPC. These features act as additional layers of defense while designing your VPC architecture and are used to increase security and ...

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