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AWS Security Academy · Lesson

Understanding ARNs and Service Endpoints

Decode the Amazon Resource Names that identify every resource.

Naming Every Resource

An ARN (Amazon Resource Name) is the unique ID for every resource in AWS. Policies and logs all point to resources by ARN, so learning to read one is essential.

The Shape of an ARN

An ARN has a fixed colon format: arn:partition:service:region:account-id:resource. Each part narrows what is named, so even a long ARN reads at a glance. See the example.

arn:aws:s3:::my-secure-bucket/reports/q1.pdf

All lessons in this course

  1. Navigating the AWS Management Console
  2. Regions, Availability Zones, and Edge Locations
  3. Reading AWS CLI Commands Conceptually
  4. Understanding ARNs and Service Endpoints
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