How to fix the Oracle error NNC-00420: operation not allowed?

In this post, you’ll learn more about the Oracle ErrorNNC-00420: operation not allowed with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

NNC-00420: operation not allowed

Reason for the Error NNC-00420: operation not allowed

Cause: A name server request cannot be processed because the server which received the operation is not allowed to process it. The problem typically occurs when an administrator has disabled request processing at a particular server for some reason.

How to fix the Error NNC-00420: operation not allowed ?

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

Action: Contact your name server administrator to determine why server request processing has been disabled.