Sign-on capable terminals

Sign-on capable terminals allow CICS®-supplied (CESN), or user-written sign-on transactions to be run.

When a terminal is sign-on capable it is the responsibility of the user application to start the sign-on transaction. The user ID and password are determined by the user application and are embedded in the 3270 data. If the user ID is authenticated, subsequent transactions started at the terminal are executed in the CICS server with the authorities assigned to the authenticated user ID. Transactions started before a sign-on transaction has completed have the authorities granted to the default user ID defined for the CICS server. A check is also done against the user ID associated with the connection to see whether the CICS Transaction Gateway has authority to execute the transaction.

The user application can start a sign-off transaction at the terminal. The user can also be signed off by the server following a predefined period of inactivity. The user application should allow for this possibility. In each case, subsequent transactions started at the terminal are executed with the authorities assigned to the CICS server default user ID.

For transactions attempting to access resources, security checking is done against the user ID associated with the connection and the signed-on user's user ID.


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Timestamp icon Last updated: Tuesday, 19 November 2013


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