Setting DEFAULT LOGON requirements for MCS, HMCS and SMCS consoles

Once you have established the RACF® profiles your installation requires, you use the LOGON keyword on the DEFAULT statement in CONSOLxx to establish your MCS console operator LOGON requirements. You can:

Have the system automatically log each console on as the console is activated. Operators can log on but are not required to do so. See Automatic LOGON.
Require each operator to log on to the system before issuing commands. See Required LOGON.
Allow MCS console command authorization to control access to commands. See Optional LOGON.

To control how operators can log on to MCS consoles, use the following keyword on the DEFAULT statement in CONSOLxx:

LOGON: Controls the logon for operators of MCS or SMCS consoles

Options you can specify for LOGON are as follows:

AUTO: Specifies that the console is automatically logged on by its console name. In addition, operators can optionally log on to the console.
REQUIRED: Specifies that operators must log on before the system allows them to enter commands. If a system includes SMCS consoles, LOGON(REQUIRED) is recommended.
OPTIONAL: Specifies that operators can optionally log on to the console; otherwise, MCS console authority is in effect.

The LOGON keyword affects only full-capability display consoles. It does not prevent the operator from receiving synchronous messages. However, the LOGON keyword setting may prevent the operator from receiving synchronous write-to-operator-with-reply (WTOR) messages. For details, see individual topics about LOGON values: Automatic LOGON, Required LOGON, and Optional LOGON.

Regardless of the LOGON value set on the DEFAULT statement, individual consoles can override the value. For more information, see Setting LOGON requirements for individual MCS, HMCS or SMCS consoles.