Book Image

Linux Administration Cookbook

By : Adam K. Dean
Book Image

Linux Administration Cookbook

By: Adam K. Dean

Overview of this book

Linux is one of the most widely used operating systems among system administrators,and even modern application and server development is heavily reliant on the Linux platform. The Linux Administration Cookbook is your go-to guide to get started on your Linux journey. It will help you understand what that strange little server is doing in the corner of your office, what the mysterious virtual machine languishing in Azure is crunching through, what that circuit-board-like thing is doing under your office TV, and why the LEDs on it are blinking rapidly. This book will get you started with administering Linux, giving you the knowledge and tools you need to troubleshoot day-to-day problems, ranging from a Raspberry Pi to a server in Azure, while giving you a good understanding of the fundamentals of how GNU/Linux works. Through the course of the book, you’ll install and configure a system, while the author regales you with errors and anecdotes from his vast experience as a data center hardware engineer, systems administrator, and DevOps consultant. By the end of the book, you will have gained practical knowledge of Linux, which will serve as a bedrock for learning Linux administration and aid you in your Linux journey.
Table of Contents (15 chapters)

The filesystem hierarchy

In this section, we'll discuss hier and man hier as a way of determining what your filesystem's different names mean.

When you look at your system, you might question why certain folders are named in the way they are:

$ ls
bin dev home lib64 mnt proc run srv tmp vagrant
boot etc lib media opt root sbin sys usr var

What's sbin or opt?

You might also be curious as to know why there's a folder called root when we're supposed to be in the root of the system, /:

[vagrant@localhost /]$ pwd
/

The filesystem hierarchy has the answers you want!

Getting ready

This section is going to use our lone VM.

If not already connected, connect to your VM.

We're also going...