Configuring the middle-tier Telnet server (CS/2 example)

The middle-tier server is a Telnet server such as CS/2 V6.1, that communicates with the Host On Demand client using an SSL connection with client authentication. The middle-tier server DCAR also communicates with the DCAS on the host. The DCAS and DCAR communicate over a TCP/IP connection using SSL with client authentication.

To configure the Telnet server, follow these steps:

  1. Configure the NDF file for the Express® Logon function and communication with the DCAS using the following command: 
    DEFINE_EXPRESS_LOGON_SUPPORT
        ENABLED(YES)
        DCAS_ID(9.25.55.182)
        DCAS_ID_TYPE(IP_ADDRESS)
        DCAS_PORT(8990)
  2. Use the local key management utility to store the workstation client certificate and the DCAS certificate in the local key ring:
    1. Create a key database file.
    2. Create a certificate request or generate a self-signed certificate and associate the certificate with the key ring.
    3. Store the workstation client certificate and the DCAS certificate in the key ring of the server.
  3. Use FTP to transmit the DCAR certificate to the z/OS® host and use gskkyman or RACF® Certificate Services to store the DCAR certificate in the DCAS key ring.
Parent topic: Configuring the Express Logon components