RDBMS_SERVER_DN

Parameter type	X.500 Distinguished Name
Default value	There is no default value.
Parameter class	Static
Range of values	All X.500 Distinguished Name format values

RDBMS_SERVER_DN specifies the Distinguished Name (DN) of the Oracle server. It is used for retrieving Enterprise Roles from an enterprise directory service.

If you do not want to use a directory for enterprise user and privilege management, but prefer to use SSL authentication alone, do not set this parameter.