Book Image

Linux for System Administrators

By : Viorel Rudareanu, Daniil Baturin
Book Image

Linux for System Administrators

By: Viorel Rudareanu, Daniil Baturin

Overview of this book

Linux system administration is an essential aspect of maintaining and managing Linux servers within an organization. The role of a Linux system administrator is pivotal in ensuring the smooth functioning and security of these servers, making it a critical job function for any company that relies on Linux infrastructure. This book is a comprehensive guide designed to help you build a solid foundation in Linux system administration. It takes you from the fundamentals of Linux to more advanced topics, encompassing key areas such as Linux system installation, managing user accounts and filesystems, networking fundamentals, and Linux security techniques. Additionally, the book delves into the automation of applications and infrastructure using Chef, enabling you to streamline and optimize your operations. For both newcomers getting started with Linux and professionals looking to enhance their skills, this book is an invaluable hands-on guide with a structured approach and concise explanations that make it an effective resource for quickly acquiring and reinforcing Linux system administration skills. With the help of this Linux book, you’ll be able to navigate the world of Linux administration confidently to meet the demands of your role.
Table of Contents (21 chapters)
Part 1: Linux Basics
Part 2: Configuring and Modifying Linux Systems
Part 3: Linux as a Part of a Larger System


As this ebook edition doesn't have fixed pagination, the page numbers below are hyperlinked for reference only, based on the printed edition of this book.


/etc/fstab file

editing 166, 167

updating 165, 166

/proc/cpuinfo file 52, 54

/proc filesystem 48, 49


AAA framework 195, 196

accounts management

account, adding 85

account, deleting 87

account passwords, managing 89

adduser, using 86

/etc/sudoers file 88

overview 83, 84

password expiration, setting 90, 91

user accounts, locking 90

user accounts, unlocking 90

useradd, using 85, 86

users, switching 88, 89

Active Directory authentication

with Samba 4 202

additional server storage space

upgrading, consideration 158

volumes, adding 157, 158

Address Resolution Protocol (ARP) 142

Advanced Packaging Tool (APT) 9, 102

alias effect 31

allocation groups 26

Application Binary Interface (ABI) 4

application layer...