Troubleshooting
Problem
Your CICS Transaction Server for z/OS (CICS TS) Web services SSL request fails with: DFHSO0123 Return code 435 received from function 'gsk_secure_socket_init' of System SSL. Reason: Untrusted Certificate Authority.
Symptom
DFHSO0123 Return code 435 received from function 'gsk_secure_socket_init' of System SSL.
Reason: Untrusted Certificate Authority.
[{"Product":{"code":"SSGMGV","label":"CICS Transaction Server"},"Business Unit":{"code":"BU048","label":"IBM Software"},"Component":"Secure Sockets Layer","Platform":[{"code":"PF035","label":"z\/OS"}],"Version":"4.1;4.2;5.1;5.2;5.3;5.4","Edition":"","Line of Business":{"code":"LOB70","label":"Z TPS"}}]
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Document Information
Modified date:
08 October 2025
UID
swg21285004