RHCSA Red Hat Enterprise Linux 9: Training and Exam Preparation Guide, Third Edition provides an in-depth coverage of the latest RHCSA (version 9) EX200 exam objectives. The most definitive guide available on the subject, this book explains concepts, analyzes configuration files, describes command outputs, shows step-by-step procedures (includes screenshots of actual commands executed and outputs they produced), and challenges the readers' comprehension of the concepts and procedures by presenting plenty of supplementary labs and sample realistic exam tasks to perform on their own.

This book has 22 chapters that are organized logically, from building a lab environment to the fundamentals of Linux to sophisticated Linux administration topics. The book covers the topics on local RHEL 9 installation; initial interaction with the system; essential Linux commands; file compression and archiving; file editing and manipulation; standard and special permissions; file searching and access controls; user monitoring and authentication files; users, groups, and password aging; bash shell features and startup files; processes and job scheduling; basic and advanced software administration techniques; system boot process and bootloader; kernel management and system initialization; logging and system tuning; basic and advanced storage management tools and solutions; local file systems and swap regions; network device and connection configuration; hostname resolution and time synchronization; remote file systems and automounting; the secure shell service; firewall and SELinux controls; bash shell scripting; and operating system virtualization using containers.

Each chapter highlights the major topics and relevant exam objectives at the beginning and ends with several review questions & answers and Do-It-Yourself challenge labs. Throughout the book, figures, tables, screenshots, examples, warnings, notes, and exam tips are furnished to support explanation and exam preparation. There are four sample RHCSA exams that are expected to be performed using the knowledge and skills attained from reading the material, following the in-chapter exercises, and completing the end-of-chapter challenge labs. The labs and the sample exams include hints to relevant topics and/or exercises.

This book may be used as a self-learning guide by RHCSA 9 exam aspirants, a resource by instructors and students to follow in physical and virtual training sessions, an on-the-job resource for reference, and an easy-to-understand guide by novice and non-RHEL administrators.

If you use Linux in your day-to-day work, then Linux Pocket Guide is the perfect on-the-job reference. This thoroughly updated 20th anniversary edition explains more than 200 Linux commands, including new commands for file handling, package management, version control, file format conversions, and more.

In this concise guide, author Daniel Barrett provides the most useful Linux commands grouped by functionality. Whether you're a novice or an experienced user, this practical book is an ideal reference for the most important Linux commands.

You'll learn:

• Essential concepts--commands, shells, users, and the filesystem
• File commands-creating, organizing, manipulating, and processing files of all kinds
• Sysadmin basics-superusers, processes, user management, and software installation
• Filesystem maintenance-disks, RAID, logical volumes, backups, and more
• Networking commands-working with hosts, network connections, email, and the web
• Getting stuff done-everything from math to version control to graphics and audio

You've experienced the shiny, point-and-click surface of your Linux computer--now dive below and explore its depths with the power of the command line.

The Linux Command Line takes you from your very first terminal keystrokes to writing full programs in Bash, the most popular Linux shell (or command line). Along the way you'll learn the timeless skills handed down by generations of experienced, mouse-shunning gurus: file navigation, environment configuration, command chaining, pattern matching with regular expressions, and more.

In addition to that practical knowledge, author William Shotts reveals the philosophy behind these tools and the rich heritage that your desktop Linux machine has inherited from Unix supercomputers of yore.

As you make your way through the book's short, easily-digestible chapters, you'll learn how to:

Create and delete files, directories, and symlinks

Administer your system, including networking, package installation, and process management

Use standard input and output, redirection, and pipelines

Edit files with Vi, the world's most popular text editor

Write shell scripts to automate common or boring tasks

Slice and dice text files with cut, paste, grep, patch, and sed

Once you overcome your initial shell shock, you'll find that the command line is a natural and expressive way to communicate with your computer. Just don't be surprised if your mouse starts to gather dust.

Best-selling guide to the inner workings of the Linux operating system with over 50,000 copies sold since its original release in 2014.

Linux for the Superuser

Unlike some operating systems, Linux doesn't try to hide the important bits from you--it gives you full control of your computer. But to truly master Linux, you need to understand its internals, like how the system boots, how networking works, and what the kernel actually does.

In this third edition of the bestselling How Linux Works, author Brian Ward peels back the layers of this well-loved operating system to make Linux internals accessible. This edition has been thoroughly updated and expanded with added coverage of Logical Volume Manager (LVM), virtualization, and containers.

You'll learn:

How Linux boots, from boot loaders to init (systemd)

How the kernel manages devices, device drivers, and processes

How networking, interfaces, firewalls, and servers work

How development tools work and relate to shared libraries

How to write effective shell scripts

You'll also explore the kernel and examine key system tasks inside user-space processes, including system calls, input and output, and filesystem maintenance. With its combination of background, theory, real-world examples, and thorough explanations, How Linux Works, 3rd Edition will teach you what you need to know to take control of your operating system.

NEW TO THIS EDITION:

Hands-on coverage of the LVM, journald logging system, and IPv6

Additional chapter on virtualization, featuring containers and cgroups

Expanded discussion of systemd

Covers systemd-based installations

As an author, editor, and publisher, I never paid much attention to the competition--except in a few cases. This is one of those cases. The UNIX System Administration Handbook is one of the few books we ever measured ourselves against.

--Tim O'Reilly, founder of O'Reilly Media

This edition is for those whose systems live in the cloud or in virtualized data centers; those whose administrative work largely takes the form of automation and configuration source code; those who collaborate closely with developers, network engineers, compliance officers, and all the other worker bees who inhabit the modern hive.

--Paul Vixie, Internet Hall of Fame-recognized innovator and founder of ISC and Farsight Security

This book is fun and functional as a desktop reference. If you use UNIX and Linux systems, you need this book in your short-reach library. It covers a bit of the systems' history but doesn't bloviate. It's just straight-forward information delivered in a colorful and memorable fashion.

--Jason A. Nunnelley

UNIX^(R) and Linux^(R) System Administration Handbook, Fifth Edition, is today's definitive guide to installing, configuring, and maintaining any UNIX or Linux system, including systems that supply core Internet and cloud infrastructure.

Updated for new distributions and cloud environments, this comprehensive guide covers best practices for every facet of system administration, including storage management, network design and administration, security, web hosting, automation, configuration management, performance analysis, virtualization, DNS, security, and the management of IT service organizations. The authors--world-class, hands-on technologists--offer indispensable new coverage of cloud platforms, the DevOps philosophy, continuous deployment, containerization, monitoring, and many other essential topics.

Whatever your role in running systems and networks built on UNIX or Linux, this conversational, well-written guide will improve your efficiency and help solve your knottiest problems.

This practical, tutorial-style book uses the Kali Linux distribution to teach Linux basics with a focus on how hackers would use them. Topics include Linux command line basics, filesystems, networking, BASH basics, package management, logging, and the Linux kernel and drivers.

If you're getting started along the exciting path of hacking, cybersecurity, and pentesting, Linux Basics for Hackers is an excellent first step. Using Kali Linux, an advanced penetration testing distribution of Linux, you'll learn the basics of using the Linux operating system and acquire the tools and techniques you'll need to take control of a Linux environment.

First, you'll learn how to install Kali on a virtual machine and get an introduction to basic Linux concepts. Next, you'll tackle broader Linux topics like manipulating text, controlling file and directory permissions, and managing user environment variables. You'll then focus in on foundational hacking concepts like security and anonymity and learn scripting skills with bash and Python. Practical tutorials and exercises throughout will reinforce and test your skills as you learn how to:

- Cover your tracks by changing your network information and manipulating the rsyslog logging utility
- Write a tool to scan for network connections, and connect and listen to wireless networks
- Keep your internet activity stealthy using Tor, proxy servers, VPNs, and encrypted email
- Write a bash script to scan open ports for potential targets
- Use and abuse services like MySQL, Apache web server, and OpenSSH
- Build your own hacking tools, such as a remote video spy camera and a password cracker

Hacking is complex, and there is no single way in. Why not start at the beginning with Linux Basics for Hackers?

Open source provides the competitive advantage in the Internet Age. According to the August Forrester Report, 56 percent of IT managers interviewed at Global 2,500 companies are already using some type of open source software in their infrastructure and another 6 percent will install it in the next two years. This revolutionary model for collaborative software development is being embraced and studied by many of the biggest players in the high-tech industry, from Sun Microsystems to IBM to Intel. The Cathedral & the Bazaar is a must for anyone who cares about the future of the computer industry or the dynamics of the information economy. Already, billions of dollars have been made and lost based on the ideas in this book. Its conclusions will be studied, debated, and implemented for years to come. According to Bob Young, This is Eric Raymond's great contribution to the success of the open source revolution, to the adoption of Linux-based operating systems, and to the success of open source users and the companies that supply them. The interest in open source software development has grown enormously in the past year. This revised and expanded paperback edition includes new material on open source developments in 1999 and 2000. Raymond's clear and effective writing style accurately describing the benefits of open source software has been key to its success. With major vendors creating acceptance for open source within companies, independent vendors will become the open source story in 2001.

With hundreds of tools preinstalled, the Kali Linux distribution makes it easier for security professionals to get started with security testing quickly. But with more than 600 tools in its arsenal, Kali Linux can also be overwhelming. The new edition of this practical book covers updates to the tools, including enhanced coverage of forensics and reverse engineering.

Author Ric Messier also goes beyond strict security testing by adding coverage on performing forensic analysis, including disk and memory forensics, as well as some basic malware analysis.

• Explore the breadth of tools available on Kali Linux
• Understand the value of security testing and examine the testing types available
• Learn the basics of penetration testing through the entire attack lifecycle
• Install Kali Linux on multiple systems, both physical and virtual
• Discover how to use different security-focused tools
• Structure a security test around Kali Linux tools
• Extend Kali tools to create advanced attack techniques
• Use Kali Linux to generate reports once testing is complete

Advance your understanding of the Linux command line with this invaluable resource

Linux Command Line and Shell Scripting Bible, 4th Edition is the newest installment in the indispensable series known to Linux developers all over the world. Packed with concrete strategies and practical tips, the latest edition includes brand-new content covering:

• Understanding the Shell
• Writing Simple Script Utilities
• Producing Database, Web & Email Scripts
• Creating Fun Little Shell Scripts

Written by accomplished Linux professionals Christine Bresnahan and Richard Blum, Linux Command Line and Shell Scripting Bible, 4th Edition teaches readers the fundamentals and advanced topics necessary for a comprehensive understanding of shell scripting in Linux. The book is filled with real-world examples and usable scripts, helping readers navigate the challenging Linux environment with ease and convenience.

The book is perfect for anyone who uses Linux at home or in the office and will quickly find a place on every Linux enthusiast's bookshelf.

Linux is for everyone!

Linux All-in-One For Dummies breaks down the ever-popular operating system to its basics and trains users on the art of Linux. This handy reference covers all the latest updates and operating system features. It presents content on Linux desktops, applications, and more. With eight books in one, you'll have access to the most comprehensive overview of Linux around. Explore the inner workings of Linux machines, so you'll know Linux front to back. This all-inclusive handbook also walks you through solving Linux problems--complete with hands-on examples--so you'll be a Linux whiz before you know it.

• Get familiar with Linux as you install and customize the operating system
• Learn how to navigate the file system, use the Linux shell, and get online
• Become a Linux guru with server hosting, scripting, and security how-tos
• Study for your Linux certification by using this complete guide as your reference

This book is a massive source of support for beginning and intermediate Linux users, as well as those looking to brush up on their knowledge for certification. And, thanks to the signature Dummies approach, it's also a lot of fun.

The industry favorite Linux guide

Linux Bible, 10th Edition is the ultimate hands-on Linux user guide, whether you're a true beginner or a more advanced user navigating recent changes. this updated tenth edition covers the latest versions of Red Hat Enterprise Linux (RHEL 8), Fedora 30, and Ubuntu 18.04 LTS. It includes information on cloud computing, with new guidance on containerization, Ansible automation, and Kubernetes and OpenShift. With a focus on RHEL 8, this new edition teaches techniques for managing storage, users, and security, while emphasizing simplified administrative techniques with Cockpit. Written by a Red Hat expert, this book provides the clear explanations and step-by-step instructions that demystify Linux and bring the new features seamlessly into your workflow.

This useful guide assumes a base of little or no Linux knowledge, and takes you step by step through what you need to know to get the job done.

• Get Linux up and running quickly
• Master basic operations and tackle more advanced tasks
• Get up to date on the recent changes to Linux server system management
• Bring Linux to the cloud using Openstack and Cloudforms
• Simplified Linux administration through the Cockpit Web Interface
• Automated Linux Deployment with Ansible
• Learn to navigate Linux with Amazon (AWS), Google (GCE), and Microsofr Azure Cloud services

Linux Bible, 10th Edition is the one resource you need, and provides the hands-on training that gets you on track in a flash.

Excel in penetration testing by delving into the latest ethical hacking tools and techniques from scratch

Purchase of the print or Kindle book includes a free eBook in PDF format.

Key Features

- Learn to think like an adversary to strengthen your cyber defences

- Execute sophisticated real-life penetration tests, uncovering vulnerabilities in enterprise networks that go beyond the surface level

- Securely manipulate environments using Kali Linux, ensuring you're fully equipped to safeguard your systems against real-world threats

Book Description

Embark on an exciting journey into the world of Kali Linux - the central hub for advanced penetration testing. Honing your pentesting skills and exploiting vulnerabilities or conducting advanced penetration tests on wired and wireless enterprise networks, Kali Linux empowers cybersecurity professionals.

In its latest third edition, this book goes further to guide you on how to setup your labs and explains breaches using enterprise networks. This book is designed for newcomers and those curious about penetration testing, this guide is your fast track to learning pentesting with Kali Linux 2024.x. Think of this book as your stepping stone into real-world situations that guides you through lab setups and core penetration testing concepts. As you progress in the book you'll explore the toolkit of vulnerability assessment tools in Kali Linux, where gathering information takes the spotlight. You'll learn how to find target systems, uncover device security issues, exploit network weaknesses, control operations, and even test web applications.

The journey ends with understanding complex web application testing techniques, along with industry best practices. As you finish this captivating exploration of the Kali Linux book, you'll be ready to tackle advanced enterprise network testing - with newfound skills and confidence.

What you will learn

- Establish a firm foundation in ethical hacking

- Install and configure Kali Linux 2024.1

- Build a penetration testing lab environment and perform vulnerability assessments

- Understand the various approaches a penetration tester can undertake for an assessment

- Gathering information from Open Source Intelligence (OSINT) data sources

- Use Nmap to discover security weakness on a target system on a network

- Implement advanced wireless pentesting techniques

- Become well-versed with exploiting vulnerable web applications

Who this book is for

This pentesting book is for students, trainers, cybersecurity professionals, cyber enthusiasts, network security professionals, ethical hackers, penetration testers, and security engineers. If you do not have any prior knowledge and are looking to become an expert in penetration testing using the Kali Linux, then this book is for you.

Table of Contents

- Introduction to Ethical Hacking

- Building a penetration testing lab

- Setting up for Advanced Penetration Testing Techniques

- Passive Reconnaissace

- Exploring Open Source Intelligence

- Active Reconnaissance

- Performing Vulnerability Assessments

- Understanding Network Penetration Testing

- Performing Network Penetration Testing

- Post-Exploitation Techniques

- Delving into Command and Control Tactics

- Working with Active Directory Attacks

- Advanced Active Directory Attacks

- Advanced Wireless Penetration Testing

- Social Engineering Attacks

- Understanding Website Application Security

- Advanced Website Penetration Testing

- Best Practices for the Real World

- Appendix

This book covers the Ubuntu 24.04 LTS (Noble Numbat) release, focusing on applications and administrative tools. The emphasis here is on what users will face when using Ubuntu, covering topics like installation, applications, software management, the Ubuntu desktops (GNOME, MATE, and KDE), shell commands, network connections, and system administration tasks. Ubuntu 24.04 LTS introduces several new features, as well as numerous smaller modifications. It is a long-term support release. The Ubuntu desktop, which uses GNOME, is examined in detail, along with Snap and APT package management.

The Ubuntu desktop uses a Dock and an Activities overview to manage access to applications and devices. In addition, Ubuntu 24.04 LTS desktop is based on GNOME 46, with several desktop configuration tools and the Settings dialog. In addition, features such as workspaces, extensions, and the GNOME Files file manager, are covered. The Kubuntu desktop, which uses KDE, provides a different interface using plasma containers to support panels, menus, activities, configuration tools, and widgets. Ubuntu MATE is based on the traditional GNOME 2 desktop, buy with alternative menus, panel layouts, and a dock.

Part 1 focuses on getting started, covering Ubuntu information and resources, using Ubuntu Live USB/DVD drives, installing and setting up Ubuntu, upgrading Ubuntu, basic use of the desktop interface, and connecting to wired and wireless networks. Repositories and their use are covered in detail, along with the Snap system for managing Snap packages. Ubuntu Snap package management with the App Center and the snap command, as well as APT package management with Gnome Software, the Synaptic Package Manager, and the apt and apt-get commands.

Part 2 focuses in on office, multimedia, mail, Internet, and social media applications such as the Evolution and Thunderbird email applications, the Videos media player, the Rhythmbox music player, and the LibreOffice office suite. The section includes coverage of the sound settings, Firefox Web browser, and FTP applications.

Part 3 covers the Ubuntu, Kubuntu, and Ubuntu MATE in detail. It also covers other Ubuntu flavors including Xubuntu, Lubuntu, Ubuntu Cinnamon, and Ubuntu Unity desktops. The Ubuntu desktop features a Dock, Activities overview, Applications overview, and a new System menu with Quick Setting buttons. The Kubuntu desktop is examined which is based on the KDE desktop with features such as widgets, activities, panels, menus, desktop effects, and the Discover software manager. Ubuntu MATE provides an the traditional GNOME 2 panels, but with alternative menus and panel layouts. It also provides a dock. All the desktops are different, but all access and install software from the Ubuntu APT software repositories and the Ubuntu Snap Store. All are also official Ubuntu Flavors, different desktops but the same compatible software, most of which can run on any of the flavors. The BASH shell interface is also explored, with its command editing, folder navigation, and file operations.

Part 4 deals with administration topics, first discussing system tools like the GNOME system monitor, the Disk Usage Analyzer, Seahorse, and Disk Utility. Then a detailed chapter on Ubuntu system administration tools is presented, covering tasks such as managing users and file systems, Bluetooth setup, network folder sharing, backups, and printing. The network connections chapter covers a variety of network tasks, including manual configuration of wired and wireless connections, and firewalls (the Gufw and FirewallD applications).

Everything you need to know about Linux is in this book. Written by Stephen Figgins, Ellen Siever, Robert Love, and Arnold Robbins -- people with years of active participation in the Linux community -- Linux in a Nutshell, Sixth Edition, thoroughly covers programming tools, system and network administration tools, the shell, editors, and LILO and GRUB boot loaders.

This updated edition offers a tighter focus on Linux system essentials, as well as more coverage of new capabilities such as virtualization, wireless network management, and revision control with git. It also highlights the most important options for using the vast number of Linux commands. You'll find many helpful new tips and techniques in this reference, whether you're new to this operating system or have been using it for years.

• Get the Linux commands for system administration and network management
• Use hundreds of the most important shell commands available on Linux
• Understand the Bash shell command-line interpreter
• Search and process text with regular expressions
• Manage your servers via virtualization with Xen and VMware
• Use the Emacs text editor and development environment, as well as the vi, ex, and vim text-manipulation tools
• Process text files with the sed editor and the gawk programming language
• Manage source code with Subversion and git

The Most Useful Tutorial and Reference, with Hundreds of High-Quality Examples for Every Popular Linux Distribution

First Sobell taught people how to use Linux . . . now he teaches you the power of Linux. A must-have book for anyone who wants to take Linux to the next level.

-Jon maddog Hall, Executive Director, Linux International

Discover the Power of Linux--Covers macOS, too!

• Learn from hundreds of realistic, high-quality examples, and become a true command-line guru
• Covers MariaDB, DNF, and Python 3
• 300+ page reference section covers 102 utilities, including macOS commands

For use with all popular versions of Linux, including Ubuntu, (TM) Fedora, (TM) openSUSE, (TM) Red Hat, (R) Debian, Mageia, Mint, Arch, CentOS, and macOS

Linux is today's dominant Internet server platform. System administrators and Web developers need deep Linux fluency, including expert knowledge of shells and the command line. This is the only guide with everything you need to achieve that level of Linux mastery. Renowned Linux expert Mark Sobell has brought together comprehensive, insightful guidance on the tools sysadmins, developers, and power users need most, and has created an outstanding day-to-day reference, updated with assistance from new coauthor Matthew Helmke.

This title is 100 percent distribution and release agnostic. Packed with hundreds of high-quality, realistic examples, it presents Linux from the ground up: the clearest explanations and most useful information about everything from filesystems to shells, editors to utilities, and programming tools to regular expressions.

Use a Mac? You'll find coverage of the macOS command line, including macOS-only tools and utilities that other Linux/UNIX titles ignore.

A Practical Guide to Linux(R) Commands, Editors, and Shell Programming, Fourth Edition, is the only guide to deliver

• A MariaDB chapter to get you started with this ubiquitous relational database management system (RDBMS)
• A masterful introduction to Python for system administrators and power users
• In-depth coverage of the bash and tcsh shells, including a complete discussion of environment, inheritance, and process locality, plus coverage of basic and advanced shell programming
• Practical explanations of core utilities, from aspell to xargs, including printf and sshfs/curlftpfs, PLUS macOS-specific utilities from ditto to SetFile
• Expert guidance on automating remote backups using rsync
• Dozens of system security tips, including step-by-step walkthroughs of implementing secure communications using ssh and scp
• Tips and tricks for customizing the shell, including step values, sequence expressions, the eval builtin, and implicit command-line continuation
• High-productivity editing techniques using vim and emacs
• A comprehensive, 300-plus-page command reference section covering 102 utilities, including find, grep, sort, and tar
• Instructions for updating systems using apt-get and dnf
• And much more, including coverage of BitTorrent, gawk, sed, find, sort, bzip2, and regular expressions

Gain a firm practical understanding of how to secure your Linux system from intruders, malware attacks, and other cyber threats

Key Features:

• Discover security techniques to prevent malware from infecting a Linux system, and detect it
• Prevent unauthorized people from breaking into a Linux system
• Protect important and sensitive data from being revealed to unauthorized persons

Book Description:

The third edition of Mastering Linux Security and Hardening is an updated, comprehensive introduction to implementing the latest Linux security measures, using the latest versions of Ubuntu and AlmaLinux.

In this new edition, you will learn how to set up a practice lab, create user accounts with appropriate privilege levels, protect sensitive data with permissions settings and encryption, and configure a firewall with the newest firewall technologies. You'll also explore how to use sudo to set up administrative accounts with only the privileges required to do a specific job, and you'll get a peek at the new sudo features that have been added over the past couple of years. You'll also see updated information on how to set up a local certificate authority for both Ubuntu and AlmaLinux, as well as how to automate system auditing. Other important skills that you'll learn include how to automatically harden systems with OpenSCAP, audit systems with auditd, harden the Linux kernel configuration, protect your systems from malware, and perform vulnerability scans of your systems. As a bonus, you'll see how to use Security Onion to set up an Intrusion Detection System.

By the end of this new edition, you will confidently be able to set up a Linux server that will be secure and harder for malicious actors to compromise.

What You Will Learn:

• Prevent malicious actors from compromising a production Linux system
• Leverage additional features and capabilities of Linux in this new version
• Use locked-down home directories and strong passwords to create user accounts
• Prevent unauthorized people from breaking into a Linux system
• Configure file and directory permissions to protect sensitive data
• Harden the Secure Shell service in order to prevent break-ins and data loss
• Apply security templates and set up auditing

Who this book is for:

This book is for Linux administrators, system administrators, and network engineers interested in securing moderate to complex Linux environments. Security consultants looking to enhance their Linux security skills will also find this book useful. Working experience with the Linux command line and package management is necessary to understand the concepts covered in this book.

The industry gold standard in Linux guides, fully updated

In the newly updated eleventh edition of the Linux Bible, veteran Linux author and trainer Christopher Negus walks you through the latest and most popular Linux distributions, including Red Hat Enterprise 9, Ubuntu 24 LTS, and Fedora 41. Whether you're a brand new or power user, you'll learn hands-on ways to become skilled at the world's most important operating system.

This edition expands coverage of Linux in cloud environments, such as the AWS cloud, and on-premises environments (with enhanced data center management features). You'll learn techniques for managing storage, users, and security, while familiarizing yourself with administrative techniques using the clear explanations and step-by-step instructions that this series is known for.

Also inside:

• Get Linux up and running quickly and efficiently
• Master basic operations and tackle more advanced tasks
• Start using Git to draw on and contribute to the massive open source software world
• Configure a PXE server and install Linux automatically by booting from NICs and pulling pre-built images
• Understand the latest tools that make administering Linux servers and networks much simpler

Linux Bible, 11th Edition is the single, comprehensive resource you need to get you on track in a flash. Grab your copy today.

This is the Word -- one man's word, certainly -- about the art (and artifice) of the state of our computer-centric existence. And considering that the one man is Neal Stephenson, the hacker Hemingway (Newsweek) -- acclaimed novelist, pragmatist, seer, nerd-friendly philosopher, and nationally bestselling author of groundbreaking literary works (Snow Crash, Cryptonomicon, etc., etc.) -- the word is well worth hearing. Mostly well-reasoned examination and partial rant, Stephenson's In the Beginning... was the Command Line is a thoughtful, irreverent, hilarious treatise on the cyber-culture past and present; on operating system tyrannies and downloaded popular revolutions; on the Internet, Disney World, Big Bangs, not to mention the meaning of life itself.

Gain a solid practical understanding and sufficient theoretical insight into Linux kernel internals while learning to write high-quality kernel module code and understanding the complexities of kernel synchronization

Purchase of the print or Kindle book includes a free eBook in PDF format.

Key Features

• Discover how to write Linux kernel and module code for real-world products
• Implement industry-grade techniques in real-world scenarios for fast, efficient memory allocation and data synchronization
• Understand and exploit kernel architecture, CPU scheduling, and kernel synchronization techniques

Book Description

The 2nd Edition of Linux Kernel Programming is an updated, comprehensive guide for those new to Linux kernel development. Built around the latest 6.1 Long-Term Support (LTS) Linux kernel, which is maintained until December 2026, this edition explores its key features and enhancements. Additionally, with the Civil Infrastructure Project extending support for the 6.1 Super LTS (SLTS) kernel until August 2033, this book will remain relevant for years to come.

You'll begin this exciting journey by learning how to build the kernel from source. Step by step, you will then learn how to write your first kernel module by leveraging the kernel's powerful Loadable Kernel Module (LKM) framework. With this foundation, you will delve into key kernel internals topics including Linux kernel architecture, memory management, and CPU (task) scheduling. You'll finish with understanding the deep issues of concurrency, and gain insight into how they can be addressed with various synchronization/locking technologies (for example, mutexes, spinlocks, atomic/refcount operators, rw-spinlocks and even lock-free technologies such as per-CPU and RCU).

By the end of this book, you'll build a strong understanding of the fundamentals to writing the Linux kernel and kernel module code that can straight away be used in real-world projects and products.

What you will learn

• Configure and build the 6.1 LTS kernel from source
• Write high-quality modular kernel code (LKM framework) for 6.x kernels
• Explore modern Linux kernel architecture
• Get to grips with key internals details regarding memory management within the kernel
• Understand and work with various dynamic kernel memory alloc/dealloc APIs
• Discover key internals aspects regarding CPU scheduling within the kernel, including cgroups v2
• Gain a deeper understanding of kernel concurrency issues
• Learn how to work with key kernel synchronization primitives

Who this book is for

This book is for beginner Linux programmers and developers looking to get started with the Linux kernel, providing a knowledge base to understand required kernel internal topics and overcome frequent and common development issues.

A basic understanding of Linux CLI and C programming is assumed.

Table of Contents

1. Linux Kernel Programming - A Quick Introduction
2. Building the 6.x Linux Kernel from Source - Part 1
3. Building the 6.x Linux Kernel from Source - Part 2
4. Writing Your First Kernel Module - Part 1
5. Writing Your First Kernel Module - Part 2
6. Kernel Internals Essentials - Processes and Threads
7. Memory Management Internals - Essentials
8. Kernel Memory Allocation for Module Authors - Part 1
9. Kernel Memory Allocation for Module Authors - Part 2
10. The CPU Scheduler - Part 1
11. The CPU Scheduler - Part 2
12. Kernel Synchronization - Part 1
13. Kernel Synchronization - Part 2

HIGHLIGHTS

> Covers Red Hat Enterprise Linux 8

> Covers ALL Latest Official Exam Objectives

(including Shell Scripting and Containers)

> Great for Self-Study and In-Class/Virtual Training

> 23 Chapters

> 108 Real-Life Step-By-Step Exercises and Shell Scripts

> 80 Do-It-Yourself Challenge Labs

> 408 Review Questions & Answers

> 4 Sample RHCSA Exams (23 tasks per exam)

RHCSA Red Hat Enterprise Linux 8 (UPDATED): Training and Exam Preparation Guide, Second Edition provides in-depth coverage of the latest RHCSA EX200 exam objectives that include Shell Scripting and Containers. The most definitive guide available on the subject, this book explains concepts, analyzes configuration files, describes command outputs, shows step-by-step procedures (includes screenshots of actual commands executed and outputs they produced), and challenges the readers' comprehension of the concepts and procedures by presenting plenty of additional labs and sample realistic exam tasks to perform on their own.

This book has 23 chapters that are organized logically, from setting up the lab to the fundamentals of Linux to sophisticated Linux administration topics. The book covers the topics on local RHEL 8 installation; initial interaction with the system; basic Linux commands; compression and archiving; file editing and manipulation; standard and special permissions; file searching and access controls; user monitoring and authentication files; users, groups, and password aging; bash shell features and startup files; processes and task scheduling; basic and advanced software administration techniques; system boot process and bootloader; kernel management and system initialization; logging and system tuning; basic and advanced storage management tools and solutions; local file systems and swap regions; network device and connection configuration; remote file systems and automounting; time synchronization and hostname resolution; the secure shell service; firewall and SELinux controls; and shell scripting and containers.

Each chapter highlights the major topics and relevant exam objectives at the beginning and ends with several review questions & answers and Do-It-Yourself challenge labs. Throughout the book, figures, tables, screen shots, examples, notes, and exam tips are furnished to support explanation and exam preparation. This book includes four sample RHCSA exams that are expected to be performed using the knowledge and skills attained from reading the material, following the exercises, and completing the challenge labs. The labs and the sample exams include hints to relevant topics and/or exercises.

This book may be used as a self-learning guide by RHCSA 8 exam aspirants, a resource by instructors and students to follow in physical and virtual training sessions, an on-the-job resource for reference, and an easy-to-understand guide by novice and non-RHEL administrators.