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TNS-12641: Authentication service failed to initialize

Hi,

Sometimes You can get “TNS-12641: Authentication service failed to initialize ” error.

 

Details of error are as follows.

TNS-12641: Authentication service failed to initialize
Cause: The authentication service failed during initialization.
Action: Enable tracing to determine the exact error.

 

 

 

The sqlnet.ora file that is local to the database ($ORACLE_HOME/NETWORK/ADMIN/sqlnet.ora)  contained the following entry:

 SQLNET.AUTHENTICATION_SERVICES=(ALL)

 

To solve this problem, change  SQLNET.AUTHENTICATION_SERVICES=(ALL) or SQLNET.AUTHENTICATION_SERVICES= (NTS) parameter to SQLNET.AUTHENTICATION_SERVICES = (NONE) on sqlnet.ora under $ORACLE_HOME/NETWORK/ADMIN directory.

The old value is as follows.

SQLNET.AUTHENTICATION_SERVICES=(ALL)

The new value should be as follows.

SQLNET.AUTHENTICATION_SERVICES= (NONE)

 

Do you want to learn more details about RMAN, then read the following articles.

https://ittutorial.org/rman-backup-restore-and-recovery-tutorials-for-beginners-in-the-oracle-database/

 

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