Book Image

Linux Administration Best Practices

By : Scott Alan Miller
3.3 (3)
Book Image

Linux Administration Best Practices

3.3 (3)
By: Scott Alan Miller

Overview of this book

Linux is a well-known, open source Unix-family operating system that is the most widely used OS today. Linux looks set for a bright future for decades to come, but system administration is rarely studied beyond learning rote tasks or following vendor guidelines. To truly excel at Linux administration, you need to understand how these systems work and learn to make strategic decisions regarding them. Linux Administration Best Practices helps you to explore best practices for efficiently administering Linux systems and servers. This Linux book covers a wide variety of topics from installation and deployment through to managing permissions, with each topic beginning with an overview of the key concepts followed by practical examples of best practices and solutions. You'll find out how to approach system administration, Linux, and IT in general, put technology into proper business context, and rethink your approach to technical decision making. Finally, the book concludes by helping you to understand best practices for troubleshooting Linux systems and servers that'll enable you to grow in your career as well as in any aspect of IT and business. By the end of this Linux administration book, you'll have gained the knowledge needed to take your Linux administration skills to the next level.
Table of Contents (16 chapters)
1
Section 1: Understanding the Role of Linux System Administrator
4
Section 2: Best Practices for Linux Technologies
9
Section 3: Approaches to Effective System Administration

Investigating versus fixing

When we start working to deal with an outage, data loss, or other disaster, the natural inclination is to focus on finding a root cause, fixing that root cause, and then getting systems back into a working state. It makes sense, it is the obvious course of events, and it is emotionally satisfying to work through the process.

The problem with this process is that it is based on a few flawed beliefs. It is a method derived from things like getting your car or house repaired after there is damage or an accident. The underlying principle being that the object or system in question is very expensive to acquire and in relative terms, cheap to repair.

It also focuses on the value of determining why something has occurred over the value of getting systems up and running again. The assumption is that if something has happened once that it is expected to happen again and that by knowing what has failed and why that we will be able to avoid the almost inevitable...