Operativsystemer

Ace the AZ 801 exam and master advanced Windows Server and Infrastructure-as-a-Service workload administration with this comprehensive guidePurchase of the print or Kindle book includes a free PDF eBookKey Features:Gain practical knowledge to conquer the AZ-801 certification and tackle real-world challengesLearn to secure Windows Server in on-premises and hybrid infrastructuresLeverage hands-on examples to monitor and troubleshoot Windows Server environmentsBook Description:Configuring Windows Server Hybrid Advanced Services Exam Ref AZ-801 helps you master various cloud and data center management concepts in detail, helping you grow your expertise in configuring and managing Windows Server in on-premises, hybrid, and cloud-based workloads. Throughout the book, you'll cover all the topics needed to pass the AZ-801 exam and use the skills you acquire to advance in your career.With this book, you'll learn how to secure your on-premises Windows Server resources and Azure IaaS workloads. First, you'll explore the potential vulnerabilities of your resources and learn how to fix or mitigate them. Next, you'll implement high availability Windows Server virtual machine workloads with Hyper-V Replica, Windows Server Failover Clustering, and Windows File Server.You'll implement disaster recovery and server migration of Windows Server in on-premises and hybrid environments. You'll also learn how to monitor and troubleshoot Windows Server environments.By the end of this book, you'll have gained the knowledge and skills required to ace the AZ-801 exam, and you'll have a handy, on-the-job desktop reference guide.What You Will Learn:Understand the core exam objectives and successfully pass the AZ-801 examSecure Windows Server for on-premises and hybrid infrastructures using security best practicesImplement, manage, and monitor Windows Server high availability features successfullyConfigure and implement disaster recovery services using Hyper-V features, Azure Recovery Services, and Azure Site RecoveryExplore how to migrate various servers, workloads, and tools from previous versions of Windows Server to 2022Monitor and troubleshoot Windows Server environments in both on-premises and cloud workloads using Windows Server tools, Windows Admin Center, and Azure servicesWho this book is for:This book is for Cloud and Datacenter Management administrators and engineers, Enterprise Architects, Microsoft 365 Administrators, Network Engineers, and anyone seeking to gain additional working knowledge with Windows Server operating systems and managing on-premises, hybrid and cloud workloads with administrative tools. To get started, you'll need to have a basic understanding of how to configure advanced Windows Server services utilizing existing on-premises technology in combination with hybrid and cloud technologies.

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

"Explores the history of Android attacks and covers static and dynamic approaches to analyzing real malware specimens, machine-learning techniques to detect malicious apps, and how to identify banking trojans, ransomware, and SMS fraud"--

This book provides Kafka administrators, site reliability engineers, and DataOps and DevOps practitioners with a list of real production issues that can occur in Kafka clusters and how to solve them. The production issues covered are assembled into a comprehensive troubleshooting guide for those engineers who are responsible for the stability and performance of Kafka clusters in production, whether those clusters are deployed in the cloud or on-premises. This book teaches you how to detect and troubleshoot the issues, and eventually how to prevent them.Kafka stability is hard to achieve, especially in high throughput environments, and the purpose of this book is not only to make troubleshooting easier, but also to prevent production issues from occurring in the first place. The guidance in this book is drawn from the author's years of experience in helping clients and internal customers diagnose and resolve knotty production problems and stabilize their Kafka environments. The book is organized into recipe-style troubleshooting checklists that field engineers can easily follow when under pressure to fix an unstable cluster. This is the book you will want by your side when the stakes are high, and your job is on the line. What You Will LearnMonitor and resolve production issues in your Kafka clustersProvision Kafka clusters with the lowest costs and still handle the required loadsPerform root cause analyses of issues affecting your Kafka clustersKnow the ways in which your Kafka cluster can affect its consumers and producersPrevent or minimize data loss and delays in data streamingForestall production issues through an understanding of common failure pointsCreate checklists for troubleshooting your Kafka clusters when problems occurWho This Book Is ForSite reliability engineers tasked with maintaining stability of Kafka clusters, Kafka administrators who troubleshoot production issues around Kafka, DevOps and DataOps experts who are involved with provisioning Kafka (whether on-premises or in the cloud), developers of Kafka consumers and producers who wish to learn more about Kafka

Digitize your business operations both internally and externally with a well-structured app design. Customers today turn to mobile when searching for their future vendor. This book is your step-by-step guide through the process of building mobile apps that will meet your company's needs as well as the needs of your staff. See exactly how applying certain basic principles work and make them serve your goals by troubleshooting common mobile app design, usability, and promotion issues. You'll start by listing the advantages of what makes a mobile app an ideal platform and resource for growing your market and revenue. As many companies burn money on failed mobile app projects, you'll review the best practices on how to outline your app ideas and create a mobile product roadmap. You'll then explore the process of starting mobile app development¿from an initial idea to the final product. Yoüll look at the setbacks in development that can cost you a successful outcome, andreview proven practices and features that lead to success no matter what industry you operate in. Yoüll also understand the dynamics of mobile app development, and the best ways to ensure that your mobile app serves your company¿s goal for further growth. At the end, yoüll future proof your app and weigh the pros and cons of potentially outsourcing mobile development. Mobile App Development for Businesses puts theory into practical use for developing internal and external mobile apps. What You'll LearnLaunch and position your app in the marketDevelop apps for internal and external audiencesCollect and incorporate user feedbackSee why any great business today starts with a solid digital foundationWho This Book Is ForEntrepreneurs, business owners, directors, and executives wishing to grow their businesses and expand their reach in the market. Previous technological experience is helpful but not required.

In this practical guide, four Kubernetes professionals with deep experience in distributed systems, enterprise application development, and open source will guide you through the process of building applications with this container orchestration system. Based on the experiences of companies that are running Kubernetes in production successfully, many of the methods are also backed by concrete code examples.This book is ideal for those already familiar with basic Kubernetes concepts who want to learn common best practices. Youll learn exactly what you need to know to build your best app with Kubernetes the first time.Set up and develop applications in KubernetesLearn patterns for monitoring, securing your systems, and managing upgrades, rollouts, and rollbacksUnderstand Kubernetes networking policies and where service mesh fits inIntegrate services and legacy applications and develop higher-level platforms on top of KubernetesRun machine learning workloads in Kubernetes

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.

This book constitutes the proceedings of the 7th International Conference on Smart Computing and Communication, SmartCom 2022, held in New York City, NY, USA, during November 18¿20, 2022.The 64 papers included in this book were carefully reviewed and selected from 312 submissions. SmartCom 2023 focus on recent booming developments in Web-based technologies and mobile applications which have facilitated a dramatic growth in the implementation of new techniques, such as cloud computing, edge computing, big data, pervasive computing, Internet of Things, security and privacy, blockchain, Web 3.0, and social cyber-physical systems.The conference gathered all high-quality research/industrial papers related to smart computing and communications and aimed at proposing a reference guideline for further research.

This book constitutes the refereed proceedings of the 19th International Conference on Economics of Grids, Clouds, Systems, and Services, GECON 2022, held in Izola, Slovenia, in September 2022. The 4 full papers presented in this book were carefully reviewed and selected from 22 submissions. In addition, this book includes 6 work-in-progress papers, 4 new ideas paper, and two invited papers. This series of conferences serves as a meeting place to bring together distributed systems expertise (e.g., in resource allocation, quality of service management, and energy consumption) with economics expertise (focusing on both micro- and macro-economic modelling and analysis) for creating effective solutions in this space.

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.

Leverage Defender for IoT for understanding common attacks and achieving zero trust for IoT and OT devicesPurchase of the print or Kindle book includes a free PDF eBookKey Features:Identify and resolve cybersecurity challenges in the IoT and OT worldsFamiliarize yourself with common attack vectors in the IoT and OT domainsDive into Defender for IoT, understand its capabilities, and put it to practiceBook Description:The Fourth Industrial Revolution, or Industry 4.0, is all about digital transformation, manufacturing, and production. The connected world we live in today, including industries, comes with several cybersecurity challenges that need immediate attention. This book takes you through the basics of IoT and OT architecture and helps you understand and mitigate these security challenges.The book begins with an overview of the challenges faced in managing and securing IoT and OT devices in Industry 4.0. You'll then get to grips with the Purdue model of reference architecture, which will help you explore common cyber attacks in IoT and OT environments. As you progress, you'll be introduced to Microsoft Defender for IoT and understand its capabilities in securing IoT and OT environments. Finally, you will discover best practices for achieving continuous monitoring and vulnerability management, as well as threat monitoring and hunting, and find out how to align your business model toward zero trust.By the end of this security book, you'll be equipped with the knowledge and skills to efficiently secure IoT and OT environments using Microsoft Defender for IoT.What You Will Learn:Discover security challenges faced in IoT and OT environmentsUnderstand the security issues in Industry 4.0Explore Microsoft Defender for IoT and learn how it aids in securing the IoT/OT industryFind out how to deploy Microsoft Defender for IoT along with its prerequisitesUnderstand the importance of continuous monitoringGet familiarized with vulnerability management in the IoT and OT worldsDive into risk assessment as well as threat monitoring and huntingAchieve zero trust for IoT devicesWho this book is for:This book is for industrial security, IoT security, and IT security professionals. Security engineers, including pentesters, security architects, and ethical hackers, who want to ensure the security of their organization's data when connected with the IoT will find this book useful.

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.

Learn how to build cloud-native microservices with Helidon - an open-source Java framework from Oracle. This book will show you how to take full advantage of the cloud by optimizing applications with fast start times, low memory consumption, and a small disk footprint. The open-source Helidon framework provides all that, and more. It¿s based on Java 17, giving you full access to new code features. This book reveals how Helidon also supports modern enterprise Java standards such as MicroProfile. Plus, you'll see how Helidon lets you use GraalVM to build lightning-fast native executables, and its unique reactive layer allows you to develop efficient low-level APIs.Each chapter in the book teaches a new Helidon concept through practical examples based on real-life use-cases. Yoüll learn how to add observability and security to your microservices, how to work with databases, and call other services. You'll also look at all MicroProfile 5.0 platform specifications aswell as some stand-alone specs such as Messaging and Long Running Actions. Best of all, everything covered in this book makes it a great study guide for the upcoming Oracle Helidon certification - the perfect way to prove your new skills to a prospective employer!What You'll LearnPackage microservices using JLink and GraalVMDeploy microservices to Kubernetes Review MicroProfile 5.0 specifications in detailUnderstand the basics of Helidon Reactive APIsWho This Book Is ForDevelopers and architects who want to start developing cloud-native applications; developers who already use different Java framework and want to learn about Helidon; those interested in developing portable applications using MicroProfile and Jakarta EE

Scale mobile applications to handle an enormous user base and development team. This book outlines the scaling challenges that mobile engineers face and some standard techniques and design patterns to deal with those issues. You already know the basics of iOS development, but how do you learn the key concepts and patterns to scale a mobile application? Yoüll start by learning the fundamentals of the iOS platform often overlooked when using out-of-the-box iOS solutions. While standard iOS solutions might work at a small scale, the most prominent tech companies reinvent these for highly customized usage, making understanding the underlying concepts crucial. Understanding these concepts reduces ramp-up time and allows engineers to understand the "why" intuitively. Having mastered the fundamentals, you'll next focus on architecture and design principles to build, maintain, and release features within a large codebase and the soft skills to enact change in a larger organization. Yoüll be empowered with a deeper understanding of iOS design patterns and the industry knowledge necessary to take their features from idea to production. Yoüll also study the people skills to get things done in a large organization¿a critical step to growing one's career.Upon completing iOS Development at Scale, you'll understand the solutions and tradeoffs you can leverage to build better applications and grow your career.What You'll LearnApply computer science and engineering fundamentals to the iOS platformImplement knowledge of iOS architecture and best practices at large-scale companiesIdentify current gaps in your product and gain alignment within the broader organizationSolve problems with knowledge of systems architecture and industry best practices to identify and address gaps in your codebaseWho This Book Is ForiOS software engineers and mobile engineer managers. Additionally, any software engineer, manager, or business stakeholder wanting to learn more about mobile development and the challenges that mobile engineers face.

This book constitutes the refereed proceedings of the 12th International Development Informatics Association Conference, IDIA 2022, held in Mbombela, South Africa, in November 2022. The 20 revised full papers presented in this volume were carefully reviewed and selected from 61 submissions. The papers are organized in topical sections on¿ theories and practices in digital-for-development ecosystems; emerging technologies for transformation, inclusion and sustainable development; privacy and security in digital-for-development ecosystems; human-computer interaction (HCI) for digital inclusion; artificial intelligence (AI) for good.

Lorsque vous voyez le prix d'un téléphone Pixel à côté d'un téléphone iPhone ou Samsung, vous imaginez probablement qu'il est un peu... moins cher. Vous vous tromperiez ; année après année, le Pixel a prouvé qu'il était peut-être le meilleur téléphone que l'on puisse acheter.C'est plus vrai que jamais avec le Pixel 7. Non seulement il est plus rapide, mais l'IA qui travaille en arrière-plan commencera à se sentir comme votre assistant personnel.Que vous passiez d'un iPhone ou d'un autre appareil Android, ce livre est fait pour vous. Il décompose tout ce que vous devez savoir sur l'appareil et le garde ridiculement simple !Dans ce livre, vous découvrirez :Configurer votre téléphonePasser des appelsInstallation d'applicationsUtilisation de l'appareil photoSurfer sur l'internetModification des paramètres du systèmeEt bien plus encore !Prêt à en savoir plus ? C'est parti !

Quando vedete il prezzo di un telefono Pixel accanto a quello di un iPhone o di un Samsung, probabilmente immaginate che sia un po'... più economico. Vi sbagliereste: anno dopo anno, il Pixel ha dimostrato di essere forse il miglior telefono che si possa comprare.Con il Pixel 7 questo è più vero che mai. Non solo è più veloce, ma l'intelligenza artificiale che lavora in background inizierà a sembrare il vostro assistente personale.Se state passando da un iPhone o da un altro dispositivo Android, questo libro fa per voi. Vi spiegherà tutto quello che c'è da sapere sul dispositivo e lo farà in modo incredibilmente semplice!In questo libro, imparerete a conoscere:Impostazione del telefonoEffettuare chiamateInstallazione di applicazioniUtilizzo della fotocameraNavigare in InternetModifica delle impostazioni del sistemaE molto altro ancora!Siete pronti a saperne di più? Iniziamo!

Cuando ves el precio de un teléfono Pixel al lado de un iPhone o un Samsung, probablemente imaginas que es un poco... más barato. Te equivocarías; año tras año, el Pixel ha demostrado que es quizá el mejor teléfono que el dinero puede comprar.Esto es más cierto que nunca con el Pixel 7. No solo es más rápido, sino que la IA que trabaja en segundo plano empezará a sentirse como tu asistente personal.Si usted está cambiando de un iPhone u otro dispositivo Android, este libro es para usted. ¡Desglosará todo lo que necesitas saber sobre el dispositivo y lo mantendrá ridículamente simple!En este libro, aprenderá sobre:Configurar el teléfonoHacer llamadasInstalación de aplicacionesUso de la cámaraNavegar por InternetCambiar la configuración del sistemaY mucho más.¿Listo para saber más? Pongámonos manos a la obra.

Komplett-PCs und Notebooks werden häufig mit der "kleinen" Home-Edition von Windows ausgeliefert. Diese ist kostengünstiger, verzichtet aber auf eine Reihe von Funktionen, von denen Microsoft meint, dass sie für Privatanwender weniger wichtig seien. Dabei umfasst die Liste dieser fehlenden Feature auch einige sicherheitsrelevante Funktionen, so dass "Home" tatsächlich weniger Schutz als "Pro" bietet.Dieses Buch bietet einen ausführlichen Überblick über die Funktionen, die Home-Benutzern vorenthalten werden. Vor allem aber gibt es konkrete Tipps und Anleitungen, wie Sie fast alle diese Funktionen durch Alternativen ersetzen können. Dabei kommen ausschließlich Windows-Bordmittel und Gratis-Programme zum Einsatz, so dass Ihnen keine zusätzlichen Kosten entstehen. Und falls Sie nach der Lektüre meinen, doch lieber das Original nutzen zu wollen: Auch der Wechsel von Home zu Pro und günstige Wege zu einer Pro-Lizenz werden vorgestellt.Aus dem Inhalt:- Sicher Surfen mit Sandboxie Plus- Programme in einer Sandbox testen- Virtuelle Systeme mit VirtualBox- Benutzer und Gruppen per PowerShell verwalten- Den Gruppenrichtlinien-Editor ersetzen- VeraCrypt als Alternative zu BitLocker und Co.- Schnelle Fernzugriffe per Remotehilfe-App- TeamViewer als Remote Desktop-Alternative- Reboot Restore anstelle von Kiosk-Modus- Business-Funktionen, die sich nicht ersetzen lassen- Schnelles Upgrade zur Pro-Edition per Lizenzschlüssel- Tipps, Tricks und Hintergrundinformationen

Create a mobile app for Apple platforms using SwiftUI in conjunction with Google¿s Firebase backend to post and retrieve data, authenticate users, and store data securely. Yoüll use SwiftUI to create an engaging and aesthetically appealing user interface that meets the expectations of iOS users while leveraging the power of Google¿s Firebase to securely and seamlessly work with your backend data.With an intro to Xcode and SwiftUI, followed by tutorials on how build an app with Firestore, Firebase Storage, and the Authenticate framework, you'll find everything you need to build a complete iOS application. Yoüll begin with an introduction to Firebase and an overview of how to use Xcode and write code in SwiftUI. Then dive into two real-life projects where you'll build a note application and a social media application. With these projects, you'll see how to post, read, edit, and delete data using Firestore. You'll also upload large assets, such as pictures, toFirebase Storage, and we will also authenticate users with email and Sign in with Apple. On the backend, you'll learn how to structure our data, secure it, and also use third-party extensions to enhance the user experience.Build Mobile Apps with SwiftUI and Firebase offers the skills and knowledge necessary to develop apps that are both fun and functional for the user while also providing a robust backend that integrates with your app and stores data securely. Use SwiftUI and Firebase to build something your users will love!What You'll LearnAuthenticate users on your appSecure a remote database and manage data easilyEnhance user experience with extensionsWho This Book Is ForiOS developers who are beginning their journey with both SwiftUI, to build user interfaces, and the Google Firebase backend.

The OnePlus is fast. Cutting edge. Sleek and modern. But how does it work?! This guide that will help you get the most out of the OnePlus line of phones (including the OnePlus 11 and OnePlus Nord series) without overwhelming you with irrelevant information? Inside, you'll find step-by-step instructions on everything from setting up your phone to using the camera, surfing the internet, and changing system settings.Inside you'll learn about:· What makes OnePlus different from iOS, Android, and other smartphones· Setting up your phone· Making calls· Installing apps· Accessibility features· Using the camera· Surfing the Internet· Changing system settings· And much more!So if you're looking for a practical and easy-to-follow guide to mastering the OnePlus's most powerful features, look no further than this book!Note: This guide is not endorsed by OnePlus Technlogy Co., Ltd. and should be considered unofficial.

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.

Learn the Samsung Galaxy S23 and S23 UltraLooking for a guide that will help you get the most out of your new Samsung Galaxy S23 without overwhelming you with irrelevant information? Look no further than this concise and user-friendly book!With a focus on the most popular features, this guide is perfect for those who want to quickly and easily learn how to make the most of their phone. Inside, you'll find step-by-step instructions on everything from setting up your phone to using the camera, surfing the internet, and changing system settings.But that's not all! You'll also learn what makes Galaxy different from other smartphones, how to use Samsung SmartTag, and about the accessibility features that make the phone accessible to everyone.So if you're looking for a practical and easy-to-follow guide to mastering the S23's most powerful features, look no further than this book!Inside, you'll learn about:What makes Galaxy different from iOS, Android, and other smartphonesSetting up your phoneMaking callsInstalling appsAccessibility featuresUsing the cameraSurfing the InternetChanging system settingsAnd much more!As a bonus, this guide includes a comprehensive guide on using Google Search, ensuring that you have everything you need to get up and running quickly.