z/OS Security › LU6.2 Security › IMS

IMS

To provide the necessary LU6.2 security for IMS systems, IMS uses the services of APPC z/OS to interface to an external security manager such as Resource Access Control Facility (RACF) or other equivalent external security manager (ESM). In general, the security precautions that are needed are as follows:

• Limiting the client LUs from which a conversation request can enter the system
• Ensuring that the client conversation request contains security information, user ID and password
• Limiting by user ID, those users who can request a particular transaction in the system