Native user accounts are stored in the Informatica domain and can be used only within the Informatica domain.
If the Informatica domain uses native authentication, the Service Manager stores all user account information and performs all user authentication within the Informatica domain. When a user logs in, the Service Manager uses the native security domain to authenticate the user name and password.
If the Informatica domain uses native authentication, you do not have to specify additional configuration for native authentication when you install EDS.