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Tag: JDBC Drivers

ORA-28040: No matching authentication protocol Oracle 12c

ORA-28040: No matching authentication protocol after upgrade to 12c. From oracle 12.X, the default value for the SQLNET.ALLOWED_LOGON_VERSION parameter has been updated to 11. It defines the minimum version of authentication protocol permitted to access the database. Prior to version 12c the default setting for SQLNET.ALLOWED_LOGON_VERSION (the equivalent parameter prior to 12c) was 8. In 12c the default […]

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