# 14.1.概述

FreeBSD 的一个重要方面是正确的系统配置。本章将解释许多 FreeBSD 配置过程，包括一些可用于调优 FreeBSD 系统的参数。

在阅读本章之前，你应当：

* 了解 UNIX® 和 FreeBSD 基础知识（[FreeBSD 基础](https://docs.freebsd.org/en/books/handbook/basics/#basics)）。

阅读本章后，你将了解：

* 如何使用 `/etc` 目录中的各种配置文件。
* `rc.conf` 配置和 `/usr/local/etc/rc.d` 启动脚本的基础知识。
* 如何使用 [sysctl(8)](https://man.freebsd.org/cgi/man.cgi?query=sysctl\&sektion=8\&format=html) 变量调优 FreeBSD。
* 如何配置 FreeBSD 的电源管理。


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