Using Managed AD and trusts
We will bring our non-administrative users into AWS using a Managed AD instance in AWS Directory Services. Strictly speaking, we don't even need to import our user's accounts into the Managed AD environment in order to accomplish our goal. We can arrange for the Managed AD instance to perform lookups and binds against our on-premises AD forest using a trust. A trust allows two or more AD domains to authenticate against resources that are available in the other:
Consider the example in Figure 11.9. An AWS-hosted application that requires either AD or LDAP for user authentication or authorization is configured to look to an AWS Managed AD instance for user information. The Managed AD and the on-premises AD have a two-way trust:
- The user signs in to the application.
- The application looks to the Managed AD to verify the user's credentials...