How to fix the Oracle error NNO-00312: listen address string is invalid?

In this post, you’ll learn more about the Oracle ErrorNNO-00312: listen address string is invalid with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

NNO-00312: listen address string is invalid

Reason for the Error NNO-00312: listen address string is invalid

Cause: the server’s configuration contains an invalid listen address.

How to fix the Error NNO-00312: listen address string is invalid ?

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

Action: An internal error not normally visible to the user. Contact Worldwide Customer Support.