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AWS: Security Best Practices on AWS by Albert Anthony

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VPC

VPC is your own virtual, secured, scalable network in the AWS cloud that contains your AWS resources. Let us look at the VPC security best practices:

  • Create custom VPC: It is recommended to create your own VPC and not use the default VPC as it has default settings to allow unrestricted inbound and outbound traffic.
  • Monitor VPC activity: Create VPC flow logs to monitor flow of all IP traffic in your VPC from network resources to identify and restrict any unwanted activity.
  • Use Network Address Translation (NAT): Keep all your resources that do not need access to the internet in a private subnet. Use a NAT device, such as a NAT instance or NAT gateway to allow internet access to resources in a private subnet.
  • Control access: Use IAM to control access ...

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