You can use PowerExchange selective sign-on to control connection access to PowerExchange. With selective sign-on, PowerExchange checks the PowerExchange sign-on file to verify access for the supplied user ID and, optionally, the IP address. PowerExchange performs selective sign-on checking when a PowerExchange Listener accepts a new connection over TCP/IP, and prior to starting a subtask for the request.
On z/OS and i5/OS, PowerExchange can also utilize security facilities of the z/OS and i5/OS operating systems to authenticate users. Use PowerExchange selective sign-on in conjunction with the user authentication option of the SECURITY statement. Selective sign-on does not perform password validation and provides only a minimal level of security.