Glossary term
What is ARN (Amazon Resource Name)?
ARN stands for Amazon Resource Name.
The unique ID of any AWS resource, e.g. arn:aws:iam::123456789012:user/admin. If it says :root, you are on the root user.
Learn it properly · DevOpsLesson 0: The Big Picture: Vercel vs AWS MindsetBefore touching a single server, understand what problem AWS is actually solving for you. No cost, no server — only clear thinking, plus a safe account setup.