Kerberos Constraint Delegation Fails with ORA-12638 On Linux Platform
(Doc ID 2421596.1)
Last updated on SEPTEMBER 14, 2021
Applies to:
Advanced Networking Option - Version 11.2.0.4 and laterInformation in this document applies to any platform.
Symptoms
Kerberos Constrained Delegation with the latest version of Oracle OCI on Linux fails with "ORA-12638: Credential retrieval failed".
Changes
Kerberos authentication works fine for single hop but when double hop (delegation) is configured it (call to OCIServerAttach) fails with "ORA-12638: Credential retrieval failed".
NOTE: The constrained delegation works fine on Windows.
Cause
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In this Document
Symptoms |
Changes |
Cause |
Solution |
References |