The CICS region user ID
The CICS® region user ID is used for authorization checking when the CICS system (rather than an individual user of the system) requests access to a resource.
CICS uses the region user
ID when checking authorization for these resources:
- MVS™ system log streams
- For more information, see Authorizing access to MVS log streams.
- CICS system data sets
- For more information, see Authorizing access to CICS data sets.
- CICS user data sets
- For more information, see Authorizing access to user data sets.
- Temporary storage data sharing servers
- For more information, see Authorizing access to temporary storage servers.
- The SMSVSAM server
- For more information, see Authorizing access to SMSVSAM servers.
- Named counter servers
- For more information, see Authorizing access to named counter pools and servers.
- The z/OS® Communications Server ACB
- For more information, see Controlling the opening of a CICS region's z/OS Communications Server ACB.
- JES spool data sets
- For more information see JES spool protection in a CICS environment.
- The CICS interregion program
- For more information, see Logon security checking with MRO.
- Coupling facility data tables
- For more information, see Security for coupling facility data tables.
- RACF key rings
- For more information, see Building a key ring manually.
CICS may also use the region
user ID:
- When submitting jobs to the JES internal reader
- For more information, see Controlling userid propagation.
- As a surrogate for other user IDs used during CICS execution
- For more information, see Surrogate user security.
- As a prefix for resource names passed to RACF
- For more information, see the description of the SECPRFX system initialization parameter in Security-related system initialization parameters.
- When executing CICS-supplied non-terminal transactions
- For more information, see Category 1 transactions.
- In CICS intersystem communication using LU6.2
- For more information, see Implementing LU6.2 security.
- In CICS intersystem communication using LU6.1
- For more information, see Implementing LU6.1 security.
- In CICS intersystem communication using MRO
- For more information, see Implementing MRO security.
- In Liberty JVM server using the angel process
- For more information, see The Liberty server angel process.
The CICS region user ID is assigned to a CICS region at initialization, and is the user ID that is associated with the job or started task. For more information, see Specifying the CICS region userid.