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"sqlplus / as sysdba" Fails With: "ORA-12534: TNS:operation not supported" After OS Maintenance (Doc ID 2775505.1)

Last updated on MAY 20, 2021

Applies to:

Advanced Networking Option - Version 12.1.0.2 and later
Information in this document applies to any platform.

Symptoms

Oracle Database 12.1.0.2 (both with and without the April 2021 PSU):

After OS patching or maintenance, sqlplus / as sysdba fails to connect. 

The error seen is:

This happens even when DBFIPS_140 is set to FALSE.

Changes

OS maintenance activity that impacted /etc/passwd.

Cause

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In this Document
Symptoms
Changes
Cause
Solution


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