How to fix the Oracle error TNS-12677: Authentication service not supported by database link?

In this post, you’ll learn more about the Oracle ErrorTNS-12677: Authentication service not supported by database link with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

TNS-12677: Authentication service not supported by database link

Reason for the Error TNS-12677: Authentication service not supported by database link

Cause: The authentication service used by the proxy process (database link) was unable to find the adapter being used by the client in its list of authentication mechanisms.

How to fix the Error TNS-12677: Authentication service not supported by database link ?

You can fix this error in Oracle by following the below steps

Action: Specify an authentication adapter that is shared by the client and the server being used for the database link.