Generate SSH keys for service-managed users
You can set up your server to authenticate users using the service managed authentication method, where usernames and SSH keys are stored within the service. The user's public SSH key is uploaded to the server as a user's property. This key is used by the server as part of a standard key-based authentication process. Each user can have multiple public SSH keys on file with an individual server. For limits on number of keys that can be stored per user, see AWS Transfer Family endpoints and quotas in the Amazon Web Services General Reference.
As an alternative to the service managed authentication method, you can authenticate users using a custom identity provider, or AWS Directory Service for Microsoft Active Directory. For more information, see Other custom identity provider options or Using AWS Directory Service for Microsoft Active Directory.
A server can only authenticate users using one method (service managed, directory service, or custom identity provider), and that method cannot be changed after the server is created.
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