DLP Network Monitor Replacement

Hello all , one of my network monitor Server running on version 12.0.1 ( LINUX OS) is malfunctioning so I need to replace it with a new physical Server.

• Please kindly confirm that do I need to install the DLP 12.0.1 on this and this register it a detection server in the Enforce and remove the old one ?
• Am I required to save the configurations of the old server ? if yes how to do it ?
• What steps am I required to do to replace the old Network Monitor and Install it on the new physical Server ( with the same FQDN and IP)

Your response and suggestions on this requirement would be highly appreciated. Thanks & Regards