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
The sqlnet.ora file that is local to the database ($ORACLE_HOME/NETWORK/ADMIN/sqlnet.ora) contained the following entry:
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.
The new value should be as follows.
Do you want to learn more details about RMAN, then read the following articles.