Transaction definitions for additional alias transactions

Stabilized feature: CICS® support for Open Network Computing Remote Procedure Call (ONC RPC) is stabilized. Consider exposing and orchestrating applications as API services by using z/OS Connect Enterprise Edition or CICS web services, or by writing web applications in Java or Node.js. See also Stabilization notices and discontinued functions.

You may want to use other alias transaction names for various reasons.

Auditing purposes
Resource and command checking
Allocating initiation priorities
Allocating database plan selection
Assigning different runaway values for different CICS programs

If you do, you must also define these to CICS, copying the definition from CRPA, and making amendments as necessary. The CRPA definition is as follows:

DEFINE  TRANSACTION(CRPA)       GROUP(DFHRP)
        PROGRAM(DFHRPAS)        TWASIZE(0)
        PROFILE(DFHCICST)       STATUS(ENABLED)
        TASKDATALOC(BELOW)      TASKDATAKEY(USER)
        RUNAWAY(SYSTEM)         SHUTDOWN(ENABLED)
        PRIORITY(1)             TRANCLASS(DFHTCL00)
        DTIMOUT(NO)             INDOUBT(BACKOUT)
        SPURGE(YES)             TPURGE(NO)
        RESSEC(NO)              CMDSEC(NO)

If you want a CICS program to run under an alias with a name other than CRPA, you can enter this in the connection manager when defining the attributes of the 4-tuple associated with the CICS program, as described in Defining the attributes of a 4-tuple. The name of the alias can also be changed by the Decode function, as described in Changing the alias and CICS program.

Changing the CMDSEC and RESSEC values

You might want to define new alias transactions with CMDSEC(YES) or RESSEC(YES) to enforce security checking on the programs run under the alias transaction, including the CICS program that services the client request.

None of the IBM®-supplied programs used by the alias use any of system programmer interface (SPI) commands, so CMDSEC need not be changed. However, if you want to oversee the use of SPI commands by the CICS program, resource checker, or Encode function of the converter, CMDSEC(YES) is required.