"sqlplus / as sysdba" Fails With: "ORA-12534: TNS:operation not supported" After OS Maintenance
(Doc ID 2775505.1)
Last updated on SEPTEMBER 14, 2021
Applies to:Advanced Networking Option - Version 220.127.116.11 and later
Information in this document applies to any platform.
Oracle Database 18.104.22.168 (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.
OS maintenance activity that impacted /etc/passwd.
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