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:
- 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)
- Use the local key management utility to store the workstation
client certificate and the DCAS certificate in the local key
ring:
- Create a key database file.
- Create a certificate request or generate a self-signed certificate and associate the certificate with the key ring.
- Store the workstation client certificate and the DCAS certificate in the key ring of the server.
- 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.