My Oh My! This is How MySQL Daemon is Done in OpenBSD

If you were to setup a secure Unix-like server, don't walk, run for OpenBSD, probably the most secure operating system on the planet. On databases, I frankly have personal and professional bias for PostgreSQL, but for the benefit of the uninformed masses, most prefer MySQL.

Putting two and two together, one way or another, being a systems administrator, you will one day need to setup an OpenBSD to house a MySQL server. As of this writing, OpenBSD is version 4.8 going to 4.9.