Operating System Security
The DB2 Connect middleware passes to DB2 the user ID and password used to access Siebel CRM applications to establish a connection. The user ID and password can be user credentials supplied by the external security adapter, if you are using an external security adapter.
The Security Administrator on z/OS must preregister all user IDs and passwords passed through DB2 Connect with the z/OS security package in use, for example, Resource Access Control Facility (RACF), ACF/2, or TOP SECRET. The z/OS Security Administrator can associate the user ID with a secondary authorization ID (also known as the Security Group ID on the Deployment Planning Worksheet) within the z/OS security package to simplify database security privilege administration.
DB2 Connect supports password encryption on the DB2 for z/OS platform.