In this chapter, I deliberately tried to talk about some of the most popular technology on the market at the moment, including programs that I know for a fact have large minds and market share. Some of this software has been around for ages, near decades, but more of it has joined the scene recently, owed in large part to the explosion of cloud computing in the latter half of the 2010s.
When we talk about web servers, mail servers, and databases, they come in all shapes and sizes, meaning that it's hard to suggest sensible defaults that will fit absolutely all use cases. The only advice that I can give, and which is universal, is to not compromise security for simplicity. (You've probably read enough about leaks and security breaches in recent months and years that you want to make sure your name isn't tied to...