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Over the past week, some of our readers have reported that error ora-12641 Authentication Service failed to initialize. ORA-12641: failed to initialize authentication service. Cause: Authentication service failed during initialization. Action: Turn on tracing to determine the exact failure. As mentioned earlier, this ORA-12641 error indicates a general error where a suitable trace start must be found to obtain more information.
Oracle Database Advice from Donald Burleson 20. november 2015
Q: When I try to inject SQL * Plus into the market, I get an ORA-12641 error message:
ORA-12641: failed to initialize authentication help
Answer: If you do not prefer secure authentication services, you can fix the ORA-12641 error simply by completely disabling authentication through the sqlnet.ora file.
If set to get sqlnet.ora ($ ORACLE_HOME / network / admin / sqlnet.ora) SQLNET.AUTHENTICATION_SERVICES = ALL parameter, replace it with SQLNET.AUTHENTICATION_SERVICES = NONE.
ORA-12641: authentication service did not return to initialization
PrReason: Authentication service failed during initialization.
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Action: Turn on tracing to determine the exact failure.
As mentioned earlier, this ORA-12641 error indicates a common error in which you need to ensure that the corresponding file trace matches the information.
Make sure someone has the correct encryption mechanism; for example, MS Windows 2000 uses CRC in the standard process, not MD5.
Also see MOSC Note: 185897.1, a troubleshooting guide forORA-12641 error.
About Mehmet Salih Deveci
i Founder of SysDBASoft IT and IT tutorial and Certified Oracle and SQL Server Database Expert, Goldengate, Exadata Machine, Oracle Database Appliance Administrator with over 10 years of experience in banking, insurance, finance, telecommunications and more. Clients as a consultant, internal or external. I have performed over 200 operations on this type of client such as installation and PoC, as well as Exadata migration and upgrade, Oracle and SQL Server database upgrade, Oracle RAC installation, SQL Server AlwaysOn installation, database migration, disaster recovery, restore from standby copies, performance tuning, Periodic health checks. I have performed over 2000 table replications using Goldengate or SQL Server Replication Tool for DWH databases on many clients. If you need Oracle DBA, SQL Server APPS dba, DBA, Exadata, Goldengate, EBS Consultancy and Training, you can use my email to send, SQL Server DBA, APPS DBA, Exadata, Goldengate, EBS and Ubuntu DanÄ ± ÅmanlÄ ± k and EÄŸitim i§in [secure email] email atabilirsiniz.
Sometimes you get the error “ORA-12641: Authentication service error, you are initializing.”
ORA-12641: authentication service failed to initialize SQLnet
The local.ora file for this database ($ ORACLE_HOME / NETWORK / ADMIN / sqlnet.ora) contained the following entry:
SQLNET.AUTHENTICATION_SERVICES = (ALL)
To resolve the issue again, change the setting SQLNET.AUTHENTICATION_SERVICES = (ALL) or SQLNET.AUTHENTICATION_SERVICES = (NTS) to SQLNET.AUTHENTICATION_SERVICES equals (NONE) in sqlnet.ora under $ ORACLE / _HENTICATION_SERVICES under $ ORACLE / _HENTICATION_SERVICES) Catalog = ADMIN.
SQLNET.AUTHENTIFICATION_SERVICES = (ALL)
SQLNET. (NO)
Do authentication_services = If you want to know more about RMAN, read the following articles.
About Mehmet Salih Deveci
I am the founder of SysDBASoft IT and IT Tutorial as a Certified Oracle & SQL Server Database, Goldengate, Exadata Machine, Oracle Database Appliance Administrator with over 10 years of experience. I have certificates of experts OCP, oca, OCE RAC. I have worked in over 100 banks, insurance, finance, telecommunications and other fields. Clients as a consultant, internal or external. Disaster recovery, restore from backup, performance optimization, periodic health check. I have performed over 2000 table replications using Goldengate or SQL Server Replication Tool for DWH databases on many clients. If you have с there is Oracle DBA, SQL Server APPS dba, DBA, Exadata, Goldengate. If you need EBS advice and training, you can send this email to: DBA, SQL Server DBA, APPS DBA, Exadata, Goldengate, EBS and Unix as DanÄ ± ÅmanlÄ ± k ve EÄŸitim için [email protected] atabilirsiniz mail snail.
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