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CMU AUTHENTICATION FAILS WITH ORA-28030: SERVER ENCOUNTERED PROBLEMS ACCESSING LDAP DIRECTORY SERVICE (Doc ID 3028495.1)

Last updated on JUNE 19, 2024

Applies to:

Autonomous Database Serverless - Version N/A and later
Information in this document applies to any platform.

Symptoms

- Customer is trying to connect Autonomous Databases with CMU using their on-premises Active Directory-based authentication systems in a multi-Kerberos-realms setup. This is failing with below error :

J:\>sqlplus /nolog

SQL*Plus: Release 19.0.0.0.0 - Production on Fri May 24 17:29:59 2024
Version 19.20.0.0.0

Copyright (c) 1982, 2022, Oracle.  All rights reserved.

SQL> conn /@(description= (retry_count=2)(retry_delay=3)(address=(protocol=tcps)(port=1522)(host=test.adb.eu-frankfurt-1.oraclecloud.com))(connect_data=(service_name=test_high.adb.oraclecloud.com))(security=(ssl_server_dn_match=no)))
ERROR:
ORA-28030: Server encountered problems accessing LDAP directory service

- Kerberos layer looks fine . The failure seems to be afterwards purely on the LDAP layer.

- Password based authentication also works fine.

Changes

 

Cause

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In this Document
Symptoms
Changes
Cause
Solution
References


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