I don't think I would be comfortable serving any DB over the internet these days, exploit scanners are so agressand ubiquitous that a breach would feel inevitable.
Not that it is fool proof, but if I am setting up the infrastructure I can probably control where the DB is deployed, so I would colocate it with the application servers on a local network or virtual local network, that is all I would be comfortable with.
Not that it is fool proof, but if I am setting up the infrastructure I can probably control where the DB is deployed, so I would colocate it with the application servers on a local network or virtual local network, that is all I would be comfortable with.