Kerberos Authentication On 12.1.0.1 Fails With ORA-12638 (Doc ID 1611643.1)

Last updated on FEBRUARY 03, 2019

Applies to:

Advanced Networking Option - Version 12.1.0.1 and later
Information in this document applies to any platform.

A kerberos connection from 12.1.0.1 client to 12.1.0.1.0 database fails with ORA-12638:

sqlplus /@TDSDST02

This issue can be reproduced at will with the following steps:

1 Configure Kerberos with RDBMS 11.2.0.4.0 + AD 2008
2. Configure the client 11.2.0.4.0 -> OK
3. Configure the client 12.1.0.1.0 -> Ora-12638

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In this Document

Symptoms

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