How do I fix Ora 28040 No matching authentication protocol?

The workaround for this is to set SQLNET. ALLOWED_LOGON_VERSION_SERVER in sqlnet. ora file to a lower Oracle version like 8 or 9 which are compatible with the client-server authentication when using unsupported JDBC drivers with Oracle DB 12c.

How do I fix no matching authentication protocol?

In this tool, I used ojdbc14. jar to connect a 12c database, the error is the same, ORA-28040: No matching authentication protocol….jar Oracle JDBC driver is proper to solve ORA-28040.

1. Step 1: Delete old driver. Delete the old driver which is ojdbc14.
2. Step 2: Add a new driver.
3. Step 3: Test the connection.

What is Sqlnet Allowed_logon_version?

SQLNET.ALLOWED_LOGON_VERSION = 10. If the parameter does not exist, this is a Finding. If the parameter is not set to a value of 10 or higher, this is a Finding. NOTE: It has been reported that the there is an Oracle bug (6051243) that prevents connections to the DBMS using JDBC THIN drivers when this parameter is set.

Where can I find Sqlnet Ora file?

ORACLE_HOME/network/admin directory
By default, the sqlnet. ora file is located in the ORACLE_HOME/network/admin directory. The sqlnet. ora file can also be stored in the directory specified by the TNS_ADMIN environment variable.

Where is Ojdbc jar located?

WL_HOME/server/lib
The JDBC driver is typically located at the location WL_HOME/server/lib of the installation directory. The file is ojdbc7. jar or ojdbc6. jar (for new versions of WLS), or ojdbc14.

What is the difference between sqlnet Ora and Tnsnames Ora?

tnsnames. ora is needed on clients to find databases. It’s something like /etc/hosts on UNIX. It is needed also on the server if you want to connect from the server to the database via sqlnet.

Is sqlnet Ora necessary?

Answer: The sqlnet. ora file is not necessarily created during the Oracle install. In fact, many Oracle networking products can run without the sqlnet. ora file because they use the default options.

What is the difference between ojdbc6 and ojdbc8?

Note that another difference between ojdbc6 and ojdbc7 is the supported Oracle version. Specifically ojdbc7 does not support Oracle 11.2 or 11gR2 whereas ojdbc6 does: source. For completeness, note that the number in the filename is NOT the version number of the driver and ojdbc6. jar version 12.

What JDBC driver am I using?

– One way to check the JDBC driver version is to open the ojdbc jar file and go inside the META-INF folder, and then open the “MANIFEST. MF” file. The version can be seen next to “Specification-Version”. Note that you must use the JDBC JAR file intended for the version of the JDK that you are running.

What is listener Ora and Tnsnames Ora?

ora file helps you connect from one database (or client) to another database. The tns file resides under $ORACLE_HOME/network/admin location. Make sure listener is running on the database server that you want to connect. tnsnames. ora file contains the connection details of the remote database that you want to connect.

What is the difference between Sqlnet Ora and Tnsnames Ora?

How to fix ora-28040 no matching authentication protocol?

ORA-28040: No matching authentication protocol 19c If you get ORA-28040 error When you connect to Oracle 19c database then change your sqlnet.ora file like below. Add these two lines to the sqlnet.ora SQLNET.ALLOWED_LOGON_VERSION_SERVER=8

Why do I get an ora-28040 exception?

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

Why do I get no matching authentication protocol?

ORA-28040: No matching authentication protocol. If you upgrade Oracle database from 11g to 12c or Oracle 18c, 19c, you can get this error because of Oracle Client incompatibility.

When to use minimum authentication protocol in Oracle?

Having said that, in the Parameters for the sqlnet.ora File for Oracle 12c release page you can read: To set the minimum authentication protocol allowed for clients, and when a server is acting as a client, such as connecting over a database link, when connecting to Oracle Database instances.