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Local SQL*Plus Connection and DBCA Fails With: ORA-12547: TNS:Lost Contact (Doc ID 422173.1)

Last updated on OCTOBER 20, 2019

Applies to:

Oracle Database Configuration Assistant - Version 10.1.0.2 and later
Oracle Database - Enterprise Edition - Version 10.1.0.2 and later
Oracle Solaris on x86 (32-bit)
HP-UX PA-RISC (64-bit)
Linux x86-64
Linux x86

Symptoms

Not able to make a local BEQUEATH connection (that is, without the TNS and Listener components).
So the following SQL*Plus attempt results in an error: 


$sqlplus / as sysdba

SQL*Plus: Release 11.1.0.7.0 - Production on Wed Mar 30 11:59:06 2011

Copyright (c) 1982, 2008, Oracle. All rights reserved.

ERROR:
ORA-12547: TNS:lost contact

 

Or when attempting to create a new instance through DBCA (Database Configuration Assistant). Having proceeded through all screens and completed the required input, you click the 'Finish' button, then the 'OK' button at the Confirmation screen, but immediately receive a dialogue box containing the following error message:

Changes

 

Cause

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In this Document
Symptoms
Changes
Cause
Solution
References

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