Enable Host verification in front-end configuration:

1. Provide Host as an IP, while it actually has a different CN
2. Receive an error notification "Database error code 2002"

Result:
See screenshot...

Expected:
It should be mentioned in the documentation (page) that host should be the same with CN(Common name), since it can cause confusion, along with that error notification. And that DNS will probably be involved, since providing that info in /etc/hosts is not a common practice.

Best Regards,
Aleksandrs