You can specify the following information in the system database directory:
Database name
The same value that you wrote in the DCS Directory Parameters table.
Database alias
An alias for the host or System i™ database server. This name will be used by any application program that accesses the database. By default, the value that you specify for Database name is used.
Format: 1–8 single-byte alphanumeric characters, including the number sign (#), at sign (@), dollar sign ($), and underscore (_). It cannot begin with an underscore or a number.
Node name
The same value that you wrote in the Node Directory Parameters table.
Authentication
Specifies where the validation of the user's name and password will be made for connections originating from the DB2 Connect™ server. The valid options are: SERVER, SERVER_ENCRYPT, CLIENT, KERBEROS, and DATA_ENCRYPT. There is no support for the GSSPLUGIN authentication type in the system database directory.