Amazon RDS for SQL Server now supports Windows authentication in the AWS GovCloud (US) Regions

Amazon RDS for SQL Server expands support for Windows authentication using the AWS Managed Microsoft AD service in the AWS GovCloud (US) Regions.

To join your Amazon RDS DB instances to a domain in a different account, share your AWS Managed Microsoft AD directory from the directory owner account and join the shared domain seamlessly using the AWS Management Console or CLI. Please refer to the Joining your Amazon RDS DB instance across accounts to a single shared domain blog post for more details.

Amazon RDS for SQL Server makes it easy to set up, operate, and scale SQL Server deployments in the cloud. See Amazon RDS for SQL Server Pricing for pricing details and regional availability.