IBM Support

ZWSTECHNOTE : CWPKI0824E: SSL HANDSHAKE FAILURE: Host name verification error while connecting to host [localhost] using the workload design from the DWC

Troubleshooting


Problem

Using the DWC connected to an engine z/OS and a Liberty server 24.0.0.8 or higher,
is not possible to access to the workload designer. Looking in the message.log file a message like this will be appear:
  CWPKI0824E: SSL HANDSHAKE FAILURE:  Host name verification error while connecting to host [localhost] 

Resolving The Problem

 - Stop the application server
 - Open the file dwc_installation_dir/usr/servers/dwcServer/configDropins/default/ssl_config.xml and modify the line twaSSLsettings:
 - Change from:
<ssl id="twaSSLSettings" keyStoreRef="twaKeyStore" trustStoreRef="twaTrustStore" sslProtocol="TLSv1.2" clientAuthenticationSupported="true"/>
to
<ssl id="twaSSLSettings" keyStoreRef="twaKeyStore" trustStoreRef="twaTrustStore" sslProtocol="TLSv1.2" clientAuthenticationSupported="true" verifyHostname="false"/>
- Start the application server and re-run the scenario

Document Location

Worldwide

[{"Type":"MASTER","Line of Business":{"code":"LOB70","label":"Z TPS"},"Business Unit":{"code":"BU048","label":"IBM Software"},"Product":{"code":"SSWL3F","label":"IBM Z Workload Scheduler"},"ARM Category":[{"code":"a8m0z0000001gdmAAA","label":"ZOS-\u003EDWC"}],"ARM Case Number":"","Platform":[{"code":"PF035","label":"z\/OS"}],"Version":"All Versions"}]

Document Information

Modified date:
25 January 2025

UID

ibm17177400