REXX/CICS system definition and administration

System definition, customization, and administration of REXX/CICS is described.

Authorized REXX/CICS commands and authorized command options
Several REXX/CICS commands, or command options, are identified as being authorized.
System profile exec
A system profile exec, named CICSTART, is issued before the first user exec is run after a CICS system restart.
Authorized MVS PDS REXX libraries
All MVS™ partitioned data sets allocated to ddnames CICAUTH and CICEXEC are considered REXX/CICS authorized libraries.
Defining authorized users
Users can be specified as authorized by using the AUTHUSER command.
Setting system options
System options are specified by using the REXX/CICS SETSYS command.
Defining a REXX file system (RFS) file pool
Use FILEPOOL commands to define, initialize, and add files to an RFS file pool. Use the RFS AUTH command for RFS file sharing authorization.
Creating a PLT entry for CICSTART
The CICSTART exec can be issued immediately after CICS system initialization by creating a CICS program load table (PLT) entry to invoke the CICREXD or CICREXR program.
Security exits
Replaceable security exits CICSECX1 and CICSECX2 are described. IBM provides sample assembler exits that you can customize or replace.

Parent topic: Configuring REXX