Configuration HOWTO would be the main documentation for configuring most common hardware and services.
This document is one of the most important for LDP, because by configuring hardware and software you can get your own Linux box. This HOWTO was born in the Golden Age of developers, mainly for the command line. As it became too big and old for the current distros, I rewrote it more simple as I could.
Fundamentally, to configure the system, Linux users have to write some configuration files. To do it easyer, today programs and wizards are avaliable to manage them. This programs may be quite different for the various distributions.
In this HOWTO, I will speak about Mandrake-Linux and about Red Hat.