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AWS › AWS Config

What is AWS Config and what problem does it help solve?

Beginner

Answer

AWS Config is a service that continuously records the configuration state of your AWS resources over time and evaluates them against rules you define, letting you answer questions like what did this resource's configuration look like last week, or is this resource currently compliant with our security policies, without needing to manually track configuration changes yourself.
aws configservice put-configuration-recorder --configuration-recorder name=default,roleARN=arn:aws:iam::123456789012:role/ConfigRole
Real-world example A security team uses AWS Config to detect the exact moment a security group was accidentally modified to allow public internet access, along with a clear before and after view of the configuration change.

Common follow-ups: What is the difference between AWS Config and CloudTrail?;How much historical configuration data does AWS Config retain?