In Tuxedo, each type of security mechanism requires that every user provide an application password as part of the process of joining the Tuxedo ATMI application, but In Tuxedo ART for IMS, it has been removed in order to keep the same behavior as IMS resides on z/OS. User should keep application password as NULL. For more information on how to configure Tuxedo application password, please refer to Tuxedo documentation. The USER_AUTH and ACL/Mandatory ACL security mechanism requires that each user must provide a valid username and password to join the Tuxedo ART for IMS runtime. The per-user password must match the password associated with the user name stored in a file named tpusr. Client name is not used. The checking of per-user password against the password and user name in tpusr is carried out by the Tuxedo authentication service AUTHSVC, which is provided by the Tuxedo authentication server AUTHSVR. For more information on how to configure Tuxedo USER_AUTH and ACL/Mandatory ACL authentication, please refer to Tuxedo documentation.

For more information, see Using Security in ATMI Applications, in the Oracle Tuxedo Users Guide.