40. What do you need to know about IAM?

Identity Access Management, also known as IAM, can be an intimidating service when getting started with AWS. But IAM is also one of those core services that you can’t really avoid. In this episode we try to distill down everything that you need to know to understand IAM and start to use it proficiently. We cover what IAM is, why it is so important, how authentication and authorization work, what policy documents are and how to write them, how a user or an application get credentials to interact with AWS and finally many examples, tips and tricks. In this episode, we mentioned the following resources: - IAM access analyzer:  https://docs.aws.amazon.com/IAM/latest/UserGuide/what-is-access-analyzer.html - Our previous episode on how to manage AWS credentials: https://www.youtube.com/watch?v=X4uA6EtNyos - Understanding how IAM Policies work (AWS Docs): https://docs.aws.amazon.com/IAM/latest/UserGuide/intro-structure.html - Policy simulator: https://policysim.aws.amazon.com/ - Policy evaluation logic (AWS Docs): https://docs.aws.amazon.com/IAM/latest/UserGuide/reference_policies_evaluation-logic.html - How the Signature v4 (sigv4) algorithm works (AWS Docs): ​​https://docs.aws.amazon.com/general/latest/gr/sigv4_signing.html - Actions, resources, and condition keys for AWS services - https://docs.aws.amazon.com/service-authorization/latest/reference/reference_policies_actions-resources-contextkeys.html - Video IAM Concepts by beabetterdev: https://www.youtube.com/watch?v=_ZCTvmaPgao - Re:Invent session “Getting started with AWS identity” by Becky Weiss: https://www.youtube.com/watch?v=Zvz-qYYhvMk - Re:Invent session “Become an IAM Policy Master in 60 Minutes or Less” by Brigid Johnson:  https://www.youtube.com/watch?v=YQsK4MtsELU This episode is also available on YouTube: https://www.youtube.com/AWSBites You can listen to AWS Bites wherever you get your podcasts: - Apple Podcasts: https://podcasts.apple.com/us/podcast/aws-bites/id1585489017 - Spotify: https://open.spotify.com/show/3Lh7PzqBFV6yt5WsTAmO5q - Google: https://podcasts.google.com/feed/aHR0cHM6Ly9hbmNob3IuZm0vcy82YTMzMTJhMC9wb2RjYXN0L3Jzcw== - Breaker: https://www.breaker.audio/aws-bites - RSS: ​​https://anchor.fm/s/6a3312a0/podcast/rss Do you have any AWS questions you would like us to address? Leave a comment here or connect with us on Twitter: - https://twitter.com/eoins - https://twitter.com/loige

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