Linux

Arguably one of the most highly regarded and widely used enterprise-level operating systems available today is the Red Hat Enterprise Linux (typically shortened to RHEL and pronounced rell) distribution. Not only is it considered to be among the most stable and reliable operating systems, but it is also backed by the considerable resources and technical skills of Red Hat, Inc. Red Hat Enterprise Linux 9 Essentials is designed to provide detailed information on the installation, use, and administration of the Red Hat Enterprise Linux 9 distribution. For beginners, the book covers topics such as operating system installation, the basics of the GNOME desktop environment, configuring email and web servers, and installing packages and system updates using App Streams. Additional installation topics, such as dual booting with Microsoft Windows, are also covered, together with all important security topics, such as configuring a firewall and user and group administration. For the experienced user, topics such as remote desktop access, the Cockpit web interface, logical volume management (LVM), disk partitioning, swap management, KVM virtualization, Secure Shell (SSH), Linux Containers, and file sharing using both Samba and NFS are covered in detail to provide a thorough overview of this enterprise class operating system.

Rocky Linux 9 Essentials is designed to provide detailed information on the installation, use, and administration of the Rocky Linux 9 distribution. For beginners, the book covers topics such as operating system installation, the basics of the GNOME desktop environment, configuring email and web servers, and installing packages and system updates. Additional installation topics, such as dual booting with Microsoft Windows, are also covered, together with all important security topics, such as configuring a firewall and user and group administration. For the experienced user, topics such as remote desktop access, the Cockpit web interface, logical volume management (LVM), disk partitioning, swap management, KVM virtualization, Secure Shell (SSH), Linux Containers, and file sharing using both Samba and NFS are covered in detail to provide a thorough overview of this enterprise class operating system.

"Maîtrisons VI/Vim sous Linux" est un livre qui vous guidera pas à pas dans l'apprentissage des commandes Vim sous Linux.Vous apprendrez les commandes de base, les techniques avancées et les astuces pour utiliser Vim de manière efficace.Vous découvrirez comment personnaliser Vim pour répondre à vos besoins .Que vous soyez débutant ou utilisateur avancé, ce livre vous aidera à maîtriser l'éditeur de texte Vim sous Linux .

Elevate your Linux-powered system with Yocto Projects, enhancing its stability and resilience efficiently and economically - now upgraded to the latest Yocto Project versionPurchase of the print or Kindle book includes a free PDF eBookKey Features:- Optimize your Yocto Project tools to develop efficient Linux-based projects- Follow a practical approach to learning Linux development using Yocto Project- Employ the best practices for embedded Linux and Yocto Project developmentBook Description:The Yocto Project is the industry standard for developing dependable embedded Linux projects. It stands out from other frameworks by offering time-efficient development with enhanced reliability and robustness.With Embedded Linux Development Using Yocto Project, you'll acquire an understanding of Yocto Project tools, helping you perform different Linux-based tasks. You'll gain a deep understanding of Poky and BitBake, explore practical use cases for building a Linux subsystem project, employ Yocto Project tools available for embedded Linux, and uncover the secrets of SDK, recipe tool, and others. This new edition is aligned with the latest long-term support release of the aforementioned technologies and introduces two new chapters, covering optimal emulation in QEMU for faster product development and best practices.By the end of this book, you'll be well-equipped to generate and run an image for real hardware boards. You'll gain hands-on experience in building efficient Linux systems using the Yocto Project.What You Will Learn:- Understand the basic Poky workflows concepts along with configuring and preparing the Poky build environment- Learn with the help of up-to-date examples in the latest version of Yocto Project- Configure a build server and customize images using Toaster- Generate images and fit packages into created images using BitBake- Support the development process by setting up and using Package feeds- Debug Yocto Project by configuring Poky- Build an image for the BeagleBone Black, RaspberryPi 4, and Wandboard, and boot it from an SD cardWho this book is for:If you are an embedded Linux developer and want to broaden your knowledge about the Yocto Project with examples of embedded development, then this book is for you. Professionals looking for new insights into working methodologies for Linux development will also find plenty of helpful information in this book.Table of Contents- Meeting the Yocto Project- Baking Our First Poky Based System- Using Toaster to Bake an Image- Meeting the BitBake tool- Grasping the BitBake Tool- Detailing the Temporary Build Directory- Assimilating Packaging Support- Diving into BitBake Metadata- Developing with the Yocto Project- Debugging with the Yocto Project- Exploring External Layers- Creating Custom Layers- Customizing Existing Recipes- Achieving GPL Compliance- Booting Our Custom Embedded Linux- Speeding Up Product Development Through Emulation - QEMU- Best Practices

Ce livre est destiné aux débutants et utilisateurs avancés qui souhaitent apprendre et approfondir leurs compétences en shell sous Linux. Il est accessible, même si vous n'avez aucune expérience en programmation ou en ligne de commande. Nous avons inclus des exemples pratiques afin de mieux comprendre chaque commande et ses options.

C differs from most programming languages in its use of expressions, pointers, and arrays. For those learning C, pointers are the greatest source of confusion. The primary aim of this text is to provide working models of how pointers are used in C as well as an introduction to their use in C++. Most beginners falter on the use of pointers. Many try to avoid pointers completely, but quickly find that pointers are used extensively throughout C programs. Some attain a partial understanding of pointers which, at first, gets them by. However, when faced with complex programming tasks, they find that pointers become a necessity. In most programming languages one learns about pointers only after most other topics have been discussed. Pointers are just one more added feature of the language. In C and in C++, however, pointers are used with every feature. There are pointers to variables, pointers as parameters, pointers as arrays, pointers to structures, and even pointers to pointers. With each feature pointers are used differently. The way pointers work with variables is very different from the way pointers work with arrays. In this text, you learn pointers as you learn each feature of the language. With variables, you learn pointers to variables; with parameters, pointers to parameters; with functions: pointers to functions; with arrays, pointers in arrays; with structures, pointers to structures. In addition, for C++ you will learn pointers to objects, to class members, and derived objects. Such an approach provides an understanding of the many different ways pointers are used throughout the language. The text is arranged in five sections. The first section focuses on the basic structure of the language. Variables, functions, and expressions are carefully examined. The second section deals with arrays. Arrays form an exception in C. Unlike structures they are not data objects. They are completely managed by pointers. The third section describes data structures and file management. The chapter on data structures introduces basic concepts such as linked lists and trees. A special examination is made of recursion and how it operates with lists, trees, and b-trees. The chapters on file management discuss the different types of files with special emphasis on record files b-tree indexes. The fourth section provides an introduction to C++, covering classes and objects, their use with pointers, as well as operator overloading and inheritance. The fifth section covers additional topics greater detail such as the pre-processor and bitwise operations.

GCC 8.0 GNU Compiler Collection Internals documents the internals of the GNU compilers, including how to port them to new targets and some information about how to write front ends for new languages. It corresponds to the compilers (GCC) version 8.0.1. The use of the GNU compilers is documented in a separate manual. See Section "Introduction" in Using the GNU Compiler Collection (GCC).This manual is mainly a reference manual rather than a tutorial. It discusses how to contribute to GCC (see Chapter 1 [Contributing], page 3), the characteristics of the machines supported by GCC as hosts and targets (see Chapter 2 [Portability], page 5), how GCC relates to the ABIs on such systems (see Chapter 3 [Interface], page 7), and the characteristics of the languages for which GCC front ends are written (see Chapter 5 [Languages], page 59). It then describes the GCC source tree structure and build system, some of the interfaces to GCC front ends, and how support for a target system is implemented in GCC.This manual is available online for free at gnu.org. This manual is printed in grayscale.

This book is a practical guide to Linux commands for beginner and intermediate users. It focuses on essential skills for file and process management, providing step-by-step instructions for manipulating files and directories, managing running processes, and understanding basic terminal commands.The explanations are clear and accompanied by concrete examples for better understanding. Whether you are a computer science student or a user looking to improve your file management skills, this book is an indispensable tool for learning Linux commands and increasing your efficiency

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.

Gain a firm practical understanding of how to secure your Linux system from intruders, malware attacks, and other cyber threatsKey Features:Discover security techniques to prevent malware from infecting a Linux system, and detect itPrevent unauthorized people from breaking into a Linux systemProtect important and sensitive data from being revealed to unauthorized personsBook 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 systemLeverage additional features and capabilities of Linux in this new versionUse locked-down home directories and strong passwords to create user accountsPrevent unauthorized people from breaking into a Linux systemConfigure file and directory permissions to protect sensitive dataHarden the Secure Shell service in order to prevent break-ins and data lossApply security templates and set up auditingWho 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.

This book is designed as an Ubuntu 22.04 LTS Server administration and reference source, covering the Ubuntu servers and their support applications. Server tools are covered as well as the underlying configuration files and system implementations. The emphasis is on what administrators will need to know to perform key server support and management tasks. Coverage of the systemd service management system is integrated into the book. Topics covered include software management, systemd service management, AppArmor security, OpenSSH, the Chrony time server, and Ubuntu cloud services. Key servers are examined, including Web, FTP, CUPS printing, NFS, and Samba Windows shares. Network support servers and applications covered include the Squid proxy server, the Domain Name System (BIND) server, DHCP, distributed network file systems, nftables firewalls, and cloud computing.The book is organized into five parts: getting started, services, shared resources, network support, and shells.Part 1 focuses on basic tasks such as installing the Ubuntu Live Server, configuring networking with Netplan, systemd-networkd, and NetworkManager, managing software from the Ubuntu Snap and APT repositories, and basic usage for the desktop and the command line interfaces. Part 2 examines Internet servers as well as how services are managed by systemd using unit files. Configuration and implementation of the Postfix mail server, the vsftpd FTP server, the Apache Web server, as well as news and database servers are covered in detail.Part 3 deals with servers that provide shared resources on a local network or the Internet. Services examined include the CUPS printing server, NFS Linux network file server, and Samba Windows file and printing server, clustering, and cloud computing services supported by Ubuntu.Part 4 covers servers that provide network support, like the Squid proxy server, the Bind Domain Name System (DNS) server, DHCP servers, and the nftables firewall along with the configuration firewall tools FirewallD and UFW. Key networking operations are also examined like IPv6 auto-configuration, TPC/IP networking, and network monitoring tools.Part 5 provides a review of shell commands, including those used for managing files, as well as shell scripts, variables, and configuration files. The Ubuntu Live Server only installs a command line interface, with no desktop. To manage your system and its files you will have to know the shell commands.

This book is designed as an Ubuntu 22.04 LTS Server administration and reference source, covering the Ubuntu servers and their support applications. Server tools are covered as well as the underlying configuration files and system implementations. The emphasis is on what administrators will need to know to perform key server support and management tasks. Coverage of the systemd service management system is integrated into the book. Topics covered include software management, systemd service management, AppArmor security, OpenSSH, the Chrony time server, and Ubuntu cloud services. Key servers are examined, including Web, FTP, CUPS printing, NFS, and Samba Windows shares. Network support servers and applications covered include the Squid proxy server, the Domain Name System (BIND) server, DHCP, distributed network file systems, nftables firewalls, and cloud computing.

This book covers the Ubuntu 22.04 LTS (Jammy Jellyfish) 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 for Snap and APT, the Ubuntu desktops (GNOME, MATE, and KDE), shell commands, network connections, and system administration tasks. There are four parts: Getting Started, Applications, Desktops, and Administration. Part 1 focuses on getting started, covering Ubuntu information and resources, using the Ubuntu Live DVD/USB drive, 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 new Snap system for managing Snap packages. Ubuntu Snap package management with Ubuntu Software, the snap command, the Snap Store are examined, as well as APT package management with Gnome Software, the Synaptic Package Manager, and the apt and apt-get commands.Part 2 keys in on office, multimedia, mail, Internet, and social media applications. Part 3 covers the Ubuntu, Kubuntu, Ubuntu MATE, Xubuntu, and Lubuntu desktops. as well as the BASH shell. The Ubuntu desktop, which uses GNOME, is examined in detail. 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.

Gain the skills and knowledge to manage your core network services on Red Hat Enterprise Linux with help of self-tests and practical use casesKey Features:Get the EX358 certification with this easy-to-follow guide while preparing for real-life challengesLearn everything you need to know about Linux system administration and automation using Ansible 2.9Use practical use cases and exam-focused questions to prepare for the certification examBook Description:If you're ready to take the next step in your system engineering career with the EX358, then this book is for you. Packed with all the knowledge and skills that you need to configure and maintain services and applications on the Red Hat Linux 8 (RHEL OS 8) platform, this book will help you ace the exam and thrive at work.Red Hat Certified Specialist in Service Management and Automation will help you build a solid foundation of the most recent and up-to-date exam requirements and practice questions.Throughout the course of the book, you'll get hands-on experience with different technical processes needed to fully administer a Red Hat Enterprise Linux 8 system. This will include file storage, database management, direct configuration of applications, such as SMB shares, networking. You'll be well equipped with the configuration of essential components like firewall, SELinux, and iSCSI while learning how to automate these tasks using Ansible Automation 2.9 in order to alleviate the burden of completing them by hand.By the end of this book, you'll have covered all essential topics to ace the Red Hat EX358 certification exam and add another feather to your career as a Red Hat Certified Specialist.What You Will Learn:Attain the skills to take and pass the Red Hat EX358 certification examBecome familiar with the ways of leveraging Ansible Core 2.9Gain deeper knowledge of the Red Hat Linux Networking with DNS, DHCP, and IP addressingCreate your own link and master the networking domain through link aggregation creationSet up printers and email services through Linux serversGet up and running with MariaDB SQL databasesExplore how to create and control web trafficWho this book is for:This book is for you if you want to advance your career by adding the essential Red Hat certificate to your resume. It will be particularly useful for system administrators responsible for managing large enterprise environments, network services and Red Hat Certified Engineers interested in becoming a Red Hat Certified Architect (RHCA). Before reading this book, you must have a working knowledge of Red Hat Enterprise Linux and Ansible Automation and command line usage of Red Hat Enterprise Linux systems administration.

A must-have Kubernetes book to learn key concepts for succeeding in any production environment, be it a greenfield Kubernetes environment or your cloud-native journeyKey Features:Advance in your Kubernetes journey with guidance from a seasoned k8s practitioner and trainerDiscover best practices for implementing Kubernetes in any production environmentGo beyond the basics and work with Kubernetes applications in every environmentBook Description:Kubernetes is a trending topic among engineers, CTOs, CIOs, and other technically sound professionals. Due to its proliferation and importance for all cloud technologies, DevOps engineers nowadays need a solid grasp of key Kubernetes concepts to help their organization thrive.This book equips you with all the requisite information about how Kubernetes works and how to use it for the best results. You'll learn everything from why cloud native is important to implementing Kubernetes clusters to deploying applications in production. This book takes you on a learning journey, starting from what cloud native is and how to get started with Kubernetes in the cloud, on-premises, and PaaS environments such as OpenShift. Next, you'll learn about deploying applications in many ways, including Deployment specs, Ingress Specs, and StatefulSet specs. Finally, you'll be comfortable working with Kubernetes monitoring, observability, and security. Each chapter of 50 Kubernetes Concepts Every DevOps Engineer Should Know is built upon the previous chapter, ensuring that you develop practical skills as you work through the code examples in GitHub, allowing you to follow along while giving you practical knowledge.By the end of this book, you'll be able to implement Kubernetes in any environment, whether it's an existing environment, a greenfield environment, or your very own lab running in the cloud or your home.What You Will Learn:Find out how Kubernetes works on-premises, in the cloud, and in PaaS environmentsWork with networking, cluster management, and application deploymentUnderstand why cloud native is crucial for Kubernetes applicationsDeploy apps in different states, including Stateless and StatefulMonitor and implement observability in your environmentExplore the functioning of Kubernetes security at the cluster, user, and application levelWho this book is for:This book is for cloud engineers, developers, DevOps engineers, and infrastructure engineers responsible for inheriting a Kubernetes environment or creating a greenfield Kubernetes environment. If you are a professional who wants to get started with cloud-native applications and implement k8s best practices, then this book is a must-read. If you have engineered environments in the cloud and on-premises and understand how to deploy applications with a solid tenure in a developer role, this book will help you further your skills.

This guide covers all aspects of Linux system administration, from user maintenance, backups, filesystem housekeeping, storage management, and network setup to hardware and software troubleshooting and some application management. It's both a practical daily reference manual for sysadmins and IT pros and a handy study guide for those taking Linux certification exams.

Prepare for CompTIA Linux+ XK0-005 exam success with this Exam Cram from Pearson IT Certification, a leader in IT certification.   This is the eBook edition of the CompTIA Linux+ XK0-005 Exam Cram. This eBook does not include access to the Pearson Test Prep practice exams that comes with the print edition.   CompTIA Linux+ XK0-005 Exam Cram is an all-inclusive study guide designed to help you pass the updated version of the CompTIA Linux+ exam. Prepare for test day success with complete coverage of exam objectives and topics, plus hundreds of realistic practice questions. Extensive prep tools include quizzes, Exam Alerts, and our essential last-minute review Cram Sheet.   Covers the critical information needed to score higher on your Linux+ XK0-005 exam! Manage files and directories Configure and manage storage Manage software configurations Implement identity management Implement and configure firewalls Create simple shell scripts to automate common tasks Perform basic container operations Analyze and troubleshoot storage issues and network resource issues

"What is eBPF? With this revolutionary technology, you can write custom code that dynamically changes the way the kernel behaves. It's an extraordinary platform for building a whole new generation of security, observability, and networking tools. This practical book is ideal for developers, system administrators, operators, and students who are curious about eBPF and want to know how it works. Author Liz Rice, chief open source officer with cloud native networking and security specialists Isovalent, also provides a foundation for those who want to explore writing eBPF programs themselves"--

Develop the skills required to administer your RHEL environment on-premises and in the cloud while preparing for the RHCSA examPurchase of the print or Kindle book includes a free eBook in PDF formatKey Features- Become a pro at system administration from installation to container management- Secure and harden your Linux environment using SSH, SELinux, firewall, and system permissions- Gain confidence to pass the RHCSA exam with the help of practice testsBook DescriptionWith Red Hat Enterprise Linux 9 becoming the standard for enterprise Linux used from data centers to the cloud, Linux administration skills are in high demand. With this book, you'll learn how to deploy, access, tweak, and improve enterprise services on any system on any cloud running Red Hat Enterprise Linux 9.Throughout the book, you'll get to grips with essential tasks such as configuring and maintaining systems, including software installation, updates, and core services. You'll also understand how to configure the local storage using partitions and logical volumes, as well as assign and deduplicate storage. You'll learn how to deploy systems while also making them secure and reliable.This book provides a base for users who plan to become full-time Linux system administrators by presenting key command-line concepts and enterprise-level tools, along with essential tools for handling files, directories, command-line environments, and documentation for creating simple shell scripts or running commands. With the help of command line examples and practical tips, you'll learn by doing and save yourself a lot of time.By the end of the book, you'll have gained the confidence to manage the filesystem, users, storage, network connectivity, security, and software in RHEL 9 systems on any footprint.What You Will Learn- Become well versed with the fundamentals of RHEL9-from system deployment to user management- Secure a system by using SELinux policies and configuring firewall rules- Understand LVM to manage volumes and maintain VDO deduplication- Manage a system remotely using SSH and public key authentication- Get the hang of the boot process and kernel tunable to adjust your systems- Automate simple tasks using scripts or Ansible PlaybooksWho this book is forThis book is for Red Hat Enterprise Linux system administrators and Linux system administrators. It's also a good resource for any IT professional who wants to learn system administration. RHCSA certification candidates will find this book useful in their preparation for the certification exam.Table of Contents- Getting RHEL Up and Running- RHEL 9 Advanced Installation Options- Basic Commands and Simple Shell Scripts- Tools for Regular Operations- Securing Systems with Users, Groups, and Permissions- Enabling Network Connectivity- Adding, Patching, and Managing Software- Administering Systems Remotely- Securing Network Connectivity with firewalld- Keeping Your System Hardened with SELinux- System Security Profiles with OpenSCAP- Managing Local Storage and Filesystems- Flexible Storage Management with LVM- Advanced Storage Management with Stratis and VDO- Understanding the Boot Process- Kernel Tuning and Managing Performance Profiles with tuned- Managing Containers with Podman, Buildah, and Skopeo- Practice Exercises - 1- Practice Exercises - 2

Learn, prepare, and practice for Red Hat RHCSA 9 (EX200) exam success with this Cert Guide from Pearson IT Certification, a leader in IT Certification learning.Master Red Hat RHCSA 9 EX200 exam topicsAssess your knowledge with chapter-ending quizzes and labsReview key concepts with exam-preparation tasksPractice with four unique practice testsLearn from two full hours of video training from the author's Red Hat Certified System Administrator (RHCSA) RHEL 9 Complete Video CourseRed Hat RHCSA 9 Cert Guide: EX200 is a comprehensive exam study guide. Leading Linux consultant, author, and instructor Sander van Vugt shares preparation hints and test-taking tips, helping you identify areas of weakness and improve both your conceptual knowledge and hands-on skills. The material is presented in a concise manner, focusing on increasing your understanding and retention of exam topics.The book presents you with an organized test-preparation routine through the use of proven series elements and techniques. Exam topic lists make referencing easy, and chapter-ending Exam Preparation Tasks help you drill deep on key concepts you must know thoroughly to pass the exam. Review questions help you assess your knowledge, and a final preparation chapter guides you through tools and resources to help you craft your final study plan.The companion website also contains two additional practice tests plus two full hours of personal video training from the author's Red Hat Certified System Administrator (RHCSA) RHEL 9 Complete Video Course.Well regarded for its level of detail, assessment features, and challenging review questions and exercises, this study guide helps you master the concepts and techniques that will enable you to succeed on the exam the first time, includingBasic system management: Installation, tools, file management, text files, RHEL9 connections, user/group management, permissions, and network configurationOperating running systems: Managing software, processes, storage, and advanced storage; working with Systemd; scheduling tasks; and configuring loggingAdvanced system administration: Managing the kernel and boot procedures, essential troubleshooting, bash shell scriptingManaging network services: Configuring SSH, firewalls, and time services; managing Apache HTTP services and SE Linux; accessing network storage; and managing containersCompanion WebsiteThe website contains two complete practice exams and more than an hour of video training from the author's Red Hat Certified System Administrator (RHCSA) RHEL 9 Complete Video Course.Includes Exclusive Offer for 70% Off the full Red Hat Certified System Administrator (RHCSA) RHEL 9 Complete Video Course.

Your one-stop resource to learn, configure and use Ubuntu 22.04 for your day-to-day operations and deployments.Purchase of the print or Kindle book includes a free eBook in PDF format.Key FeaturesGet well-versed with newly added features in Ubuntu 22.04Master the art of installing, managing, and troubleshooting Ubuntu ServerLeverage the improved performance and security-related aspects of Ubuntu Server 22.04Book DescriptionUbuntu Server is taking the server world by storm - and for a good reason! The server-focused spin of Ubuntu is a stable, flexible, and powerful enterprise-class distribution of Linux with a focus on running servers both small and large. Mastering Ubuntu Server is a book that will teach you everything you need to know in order to manage real Ubuntu-based servers in actual production deployments. This book will take you from initial installation to deploying production-ready solutions to empower your small office network, or even a full data center. You'll see examples of running an Ubuntu Server in the cloud, be walked through set up popular applications (such as Nextcloud), host your own websites, and deploy network resources such as DHCP, DNS, and others. You'll also see how to containerize applications via LXD to maximize efficiency and learn how to build Kubernetes clusters. This new fourth edition updates the popular book to cover Ubuntu 22.04 LTS, which takes advantage of the latest in Linux-based technologies. By the end of this Ubuntu book, you will have gained all the knowledge you need in order to work on real-life Ubuntu Server deployments and become an expert Ubuntu Server administrator who is well versed in its feature set.What you will learnInstall Ubuntu Server on physical servers and on the Raspberry PiDeploy Ubuntu Server in the cloud and host websites on your own serverDeploy your applications to their own containers and scale your infrastructureSet up popular applications such as NextcloudAutomate deployments and configuration with Ansible to save timeContainerize applications via LXD to maximize efficiencyDiscover best practices and troubleshooting techniquesWho this book is forThis book is for System Administrators, Site Reliability Engineers, DevOps professionals, enthusiasts, as well as for individuals looking to make a career change and learn the skills they'll need to work with Ubuntu servers. Prior knowledge of Ubuntu is not required but a basic understanding of basic computing concepts is assumed. Some IT administration, Linux, and shell scripting experience is preferred, although the first several chapters will bring newcomers up to speed as well.Table of ContentsDeploying Ubuntu ServerManaging Users and PermissionsManaging Software PackagesNavigating and Essential CommandsManaging Files and DirectoriesBoosting Your Command-line EfficiencyControlling and Managing ProcessesMonitoring System ResourcesManaging Storage VolumesConnecting to NetworksSetting Up Network ServicesSharing and Transferring FilesManaging DatabasesServing Web ContentAutomating Server Configuration with AnsibleVirtualizationRunning ContainersContainer OrchestrationDeploying Ubuntu in the CloudAutomating Cloud Deployments with TerraformSecuring Your ServerTroubleshooting Ubuntu ServersPreventing Disasters