5.2 Mapping User IDs
User IDs are used to control access to system resources in the ATMI and mainframe environments. For user IDs to be used by those ATMI and mainframe environments, both sides must have security mechanisms in place. For the ATMI domain, the security mechanism is the Authorization Server. For the host system, the security mechanism is the External Security Manager. The following figure illustrates Oracle Tuxedo Mainframe Adapter for SNA security elements.
The Oracle Tuxedo Mainframe Adapter for SNA software allows user IDs to be shared between domains in two ways:
- ATMI-to-Host User ID Mapping
- Direct User ID Mapping
Figure 5-1 Oracle Tuxedo Mainframe Adapter for SNA Security Elements
Caution:
Mixed environment security is more complex than depicted in the above figure. A domain without an operational security mechanism in place accepts all transaction requests by treating user IDs as “trusted users.” Refer to the appropriate ATMI product documentation for more detailed information about domain security.