How to fix the Oracle error NNO-00311: invalid listen address list?

In this post, you’ll learn more about the Oracle ErrorNNO-00311: invalid listen address list with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

NNO-00311: invalid listen address list

Reason for the Error NNO-00311: invalid listen address list

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

How to fix the Error NNO-00311: invalid listen address list ?

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.