In this chapter, we learned a bit about securing our MariaDB server. Security is a big topic and cannot possibly be covered completely in a single chapter, and there are many resources, both online and offline, to help you learn more about this important topic. But don't limit yourself to books or articles about securing MariaDB or other databases; also take the time to learn about system, network, and physical security.

That said, the most secure safe in the world may be one with no doors, windows, or other openings of any kind, but it's not very useful or safe if we can't access it when we need to. So in Chapter 4, Administering MariaDB, we'll make our currently secure MariaDB server a bit more useful by adding user accounts and learning how to manage them.