If the Informatica domain uses native user authentication, the domain configuration repository also contains the user credentials. If the domain uses LDAP or Kerberos authentication, the domain configuration repository does not contain the user credentials. All LDAP and Kerberos user credentials are stored outside the Informatica domain, in the LDAP directory service or Kerberos principal database.
When you create the Informatica domain during installation, the installer creates a domain configuration repository in a relational database. You must specify the database in which to create the domain configuration repository. You can create the repository on a database secured with the SSL protocol.