SNPRESET

The SNPRESET system initialization parameter specifies whether preset userid terminals share a single access control environment element (ACEE) that is associated with the userid, or a unique ACEE for every terminal.

Defining SNPRESET

You can define the SNPRESET system initialization parameter in the following ways:

On the PARM parameter of the EXEC PGM=DFHSIP statement
In the SYSIN data set of the CICS® start up job stream
Through the system console
In the DFHSIT macro

Values for SNPRESET

Valid values for the SNPRESET system initialization parameter are as follows:

SNPRESET={UNIQUE|SHARED}

UNIQUE is the default value for SNPRESET.

UNIQUE: When signing on a preset userid terminal, the ACEE will be built with entry port information. Every preset terminals will have a unique ACEE that is associated with the userid and terminal. This is the default.
If you audit data that is based on the terminal of a preset userid, use SNPRESET=UNIQUE.
SHARED: When signing on a preset userid terminal, the ACEE will be built without entry port information. All preset terminals with the same userid will use the same ACEE.
If you do not need information that is based on the terminal of a preset userid, you can save storage by selecting SNPRESET=SHARED.

Note: Set SNPRESET=SHARED only when you have a large number of preset userid terminals and do not have security definitions that rely on the netname of these terminals.

In the event of a security violation with SNPRESET=SHARED, the netname of the terminal will not appear in the DFHXS1111 message.