AWS Managed Microsoft directory

Creates an HA Microsoft active directory (within a VPC) running on windows server 2019 R2

can be connected to an On premisses AD

<aside> 👩🏻‍🌾 To set up replication for HA - need to set up forest trust, and add another AD on to an EC2

</aside>

AD Connector

Gateway to connect an on premises active directory to AWS - provides SSO to AWS (AD to IAM)

can join EC2 to your domain - dose not support HA, need VPN or DX

Simple AD

AD compatible managed by AWS - cannot be joined with premises AD