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)

Using ss, iftop, tcpdump, and others for network issues

In this recipe, we're going to list a few tools that can be used for isolating and debugging network issues, most of which can be found in the default repositories of common distributions.

A lot of these, if not all, where covered before in this book, but it's a good idea to repeat these tools over and over again, because 20% of what you'll find yourself doing in a troubleshooting scenario is trying to remember which tool is good for troubleshooting this particular problem.

Getting ready

In this recipe, feel free to try out some or all of the commands listed (or even go off script and have a read of the relevant man pages). We will be using the CentOS VM...