PA DSS 9.0: Cardholder data must never be stored on a server connected to the Internet. The default installation creates the database and all of the required settings on the Plesk server. A separate server needs to be used as a dedicated database server. The steps required to move the database are as follows:
/usr/share/plesk-billing/billing-db --set --host=remote_host --name=remote_name --user=remote_db_user --password=remote_password
Important: After installation of Plesk Business Manager, a separate database server must be used as a database server. This server should only allow connections from the Plesk server and not allow direct connections from the Internet.