ORA-28040: No matching authentication protocol exception
I am trying to connect my grails project to Oracle databse(Oracle 12c) in windows(8) system. However, whenever I run my application I get following exception :
Caused by: org.apache.commons.dbcp.SQLNestedException:
Cannot create PoolableConnectionFactory (ORA-28040:
No matching authentication protocol)
Caused by:
java.sql.SQLException: ORA-28040:
No matching authentication protocol
According to internet suggestion I also tried editing my *.ora
file but it is not working.
I added following snippet in sqlnet.ora
file :
SQLNET.ALLOWED_LOGON_VERSION=10
SQLNET.ALLOWED_LOGON_VERSION_CLIENT=10
SQLNET.ALLOWED_LOGON_VERSION_SERVER=10
Here i tried assigning (10,11,12) but neither of them is working.
Can anyone please help me with this ?
Solution 1:
I deleted the ojdbc14.jar file and used ojdbc6.jar instead and it worked for me
Solution 2:
Here is some text I found at experts-exchange:
Bug 14575666
In 12.1, the default value for the SQLNET.ALLOWED_LOGON_VERSION parameter has been updated to 11. This means that database clients using pre-11g JDBC thin drivers cannot authenticate to 12.1 database servers unless theSQLNET.ALLOWED_LOGON_VERSION parameter is set to the old default of 8.
This will cause a 10.2.0.5 Oracle RAC database creation using DBCA to fail with the ORA-28040: No matching authentication protocol error in 12.1 Oracle ASM and Oracle Grid Infrastructure environments.
Workaround: Set SQLNET.ALLOWED_LOGON_VERSION=8 in the oracle/network/admin/sqlnet.ora file.
Solution 3:
This except for adding the following to sqlnet.ora
SQLNET.ALLOWED_LOGON_VERSION_CLIENT = 8
SQLNET.ALLOWED_LOGON_VERSION_SERVER = 8
If you get "ORA-01017: invalid username/password; logon denied" error, then you need to re-create your password.