Configuring RACF services for Express Logon

At a minimum, you must register all workstation client certificates with RACF® using the RACDCERT command. This associates the certificates with the IDs of users who are attempting to log on. In the two-tier solution, the certificate is passed from the client to the TN3270E Telnet server. In the three-tier solution, the certificate is passed from the client to the middle-tier Telnet server, then to the DCAR, and then to the DCAS.

You must also create a RACF PTKTDATA profile for each application ID the user is attempting to access. The PTKTDATA profile allows the DCAS or z/OS® TN3270E Telnet server to obtain a PassTicket and user ID for the application. In the three-tier solution, the DCAS must pass the PassTicket and user ID back to the DCAR. For Host On Demand, the application ID part of the profile name must be the same as that configured in the Host On Demand Express® Logon Application ID popup window. In most cases, the application name with which the user logs on will match the application ID portion of the RACF PTKTDATA class profile. However, for TSO and some other applications, the names and IDs may not match:

For applications that allow shared user IDs (multiple users request access to the application simultaneously with the same user ID), you must specify the APPLDATA('NO REPLAY PROTECTION') option on the RDEFINE command in the PTKTDATA profile. This bypasses the default RACF protection against replay of PassTickets.