Summary
In this first chapter, you have reviewed the core IAM concepts of AWS. You then investigated cross-account access control and user federation, which are essential elements for supporting complex organizations. Finally, you looked at the various flavors offered by AWS Directory Service. All these functionalities are core for securing access to AWS resources for complex organizations. So, do make sure these elements are crystal clear in your mind before moving on and, especially if that is not the case, have a look at the additional resources provided in the next section.
The next chapter of this book will take you through the AWS networking capabilities you need to know about to select and configure the optimal network topology for your organization.
