The external communicators (SASSBSTR, SASSTRLR, U7SVC, CAL2X2W0, CAL2X2T0, and SASSBCLP) provide a means for users outside the CA WA CA 7 Edition address space to communicate with CA WA CA 7 Edition. Because the use of these programs sometimes permits access to production jobs, we recommend that you give careful consideration to the question of access to these facilities. Users of the Batch Terminal Interface require access to the program SASSBSTR. Users of the Trailer step, the Batch Card Load Program and U7SVC must be given access to SASSTRLR, SASSBCLP, and U7SVC respectively. Once the question of program access is settled, additional controls can be implemented to prevent unauthorized use of these facilities. This section describes those controls.
Users of the CA WA CA 7 Edition CAICCI Interface require access to the program CAL2X2W0. This requirement is true regardless of whether this interface is invoked in batch (program CAL2X2WB), REXX (program CAL2X2WR), or program-to-program (CAL2X2WP).
Users of the CA WA CA 7 Edition TCP/IP interface require access to the program CAL2X2T0. This requirement is true regardless of whether this interface is invoked in batch (program CAL2X2TB), REXX (program CAL2X2TR), or program-to-program (CAL2X2TP).
Two types of communication with CA WA CA 7 Edition are supported with the external communicators:
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