Open source og andre operativsystemer

This book is a detailed guide that will help learners get started with Ubuntu Linux. It talks about the basics and then moves on to practical exercises to help readers quickly gain the required knowledge.

Beginning-Intermediate user level

Understand real-world game development concepts using JavaFX game engine called FXGL. The core focus of the book is on developing a standalone game or application with FXGL.We will start with an overview of the book followed by requisite concepts from Java and JavaFX that will be used throughout this book. Next, we will learn about the FXGL game engine and its wide range of real-world game development techniques. In the following chapter, we learn about entity-component model used in FXGL to create a powerful abstraction of the game world. The next chapter builds on this, where we develop a platformer game using the physics engine and a popular external tool called Tiled. An important concept of games AI is covered in the following chapter. Visually complex features related to graphics and rendering as well as UI elements and animation system in FXGL will be discussed in the next chapter. The following chapter is dedicated to non-game applications that can be developed using FXGL. The last two chapters cover packaging and deployment of JavaFX and FXGL applications and discussion on future projects.The key take-away skill from this book is the ability to develop professional-level applications and games with FXGL. During the course of this book, you will have produced a range of cross-platform applications and games using FXGL, reinforcing the game development concepts covered throughout.What You Will Learn* Understand use of advanced Java and JavaFX concepts* Learn about real-world game development concepts in a general-purpose programming language* Master professional cross-platform, desktop and mobile, games using the FXGL game engineWho Is This Book ForThis book is for beginners in Java and/or JavaFX who wish to develop apps and games with FXGL, while improving Java and JavaFX skills.

Get a practical introduction to CockroachDB. This book starts with installation and foundational concepts and takes you through to creating clusters that are ready for production environments. You will learn how to create, optimize, and operate CockroarchDB clusters in single and multi-region environments. You will encounter anti-patterns to avoid, as well as testing techniques for integration and load testing.The book explains why CockroachDB exists, goes over its major benefits, and quickly transitions into installing and configuring CockroachDB. Just as quickly, you'll be creating databases, getting data into those databases, and querying that data from your applications. You'll progress to data privacy laws such as GDPR and CCPA, and learn how CockroachDB's global distribution features can help you comply with ever-shifting data sovereignty regulations. From there, you'll move into deployment topologies, guidance on integration testing and load testing, best practices, and a readiness checklist for production deployments.What You Will LearnDeploy and interact with CockroachDBDesign and optimize databases and tablesChoose the correct data types for modeling your dataProtect data with database and table encryptionAchieve compliance with international data privacy regulationsScale your databases in a way that enhances their performanceMonitor changes to the data and health of your databasesWho This Book Is ForDevelopers and database administrators who want to provide a secure, reliable, and effortlessly distributed home for their data; those who wish to use a modern tool to tackle the kinds of scaling challenges that have previously required dedicated teams of people to solve; anyone who wants to leverage their database to solve non-trivial, real-world challenges while protecting their data and users

Transition from a back-end developer to a full-stack developer with knowledge of all the dimensions of web application development, namely, front-end, back-end and server-side software. This book provides a comprehensive overview of Streamlit, allowing developers and programmers of all backgrounds to get up to speed in as little time as possible. Streamlit is a pure Python web framework that will bridge the skills gap and shorten development time from weeks to hours. This book walks you through the complete cycle of web application development, from an introductory to advanced level with accompanying source code and resources. You will be exposed to developing basic, intermediate, and sophisticated user interfaces and subsequently you will be acquainted with data visualization, database systems, application security, and cloud deployment in Streamlit.  In a market with a surplus demand for full stack developers, this skill set could not possibly come at a better time. In one sentence, Streamlit is a means for the empowerment of developers everywhere and all stand to gain from it. What You'll LearnMutate big data in real-timeVisualize big data interactivelyImplement web application security and privacy protocols Deploy Streamlit web applications to the cloud using Streamlit, Linux and Windows servers Who is this Book for?Developers with solid programming experience wanting to learn Streamlit; Back-end developers looking to upskill and transition to become a full-stack developers; Those who wish to learn and become more acquainted with data visualization, database systems, security and cloud deployment with Steamlit

If you want exposure to the new open source lightweight SOA-driven Apache Beehive framework project, then pick up Pro Apache Beehive, the first book on this MVC Web framework, which is increasingly gaining interest in the Eclipse community through Eclipse Pollinate. Author Kunal Mittal addresses specific Beehive topics such as page flows, controls, JSR 181 web services, XMLBeans and more.This book proceeds to describe how these technologies are used in WebLogic Workshop, and how other IDEs are extending support for these technologies. Mittal also compares PageFlows in Workshop to the Standard.

The book is a detailed guide for beginners to understand CSS with full-fledged introduction to web page and design to create a website. This book will teach you new features that can aid in the development and extension of your CSS skills. This book also explores animations, grids, flexboxes, masking, filtering, and compositing using CSS.

The book is a detailed guide for beginners to understand CSS with full-fledged introduction to web page and design to create a website. This book will teach you new features that can aid in the development and extension of your CSS skills. This book also explores animations, grids, flexboxes, masking, filtering, and compositing using CSS.

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 as well 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

Investing in engineering documentation (Docs) means investing in community user experience. This book teaches readers how mastering the docs-as-code ecosystem empowers communities to understand better their favorite products and Open-Source (OSS) technologies better.Author Alejandra Quetzalli believes that ¿docs-as-ecosystem¿ represents a more comprehensive and collaborative approach to documentation development than ¿docsas- code¿ because it recognizes that documentation is more than just code. Docs involve technical writing, design, community feedback, community management, accessibility, SEO, UX, and today¿ even Artificial Intelligence tools! The word ecosystem promotes a paradigm where we treat documentation as a complex and dynamic system that must be managed and nurtured.In this book, yoüll acquire practical skills such as creating public style guides, incorporating responsive and accessible design, designing user flows and information architecture, retrieving user feedback, and setting up Docs analytics. Yoüll learn to identify the difference in work processes between maintaining Docs for a product versus an OSS technology. Yoüll discover the secrets to managing technical writers and OSS contributions, all while building a thriving Docs community. To end on a futuristic note, yoüll discover why technical writers who harness Artificial Intelligence (AI) tools (i.e., ChatGPT) need not fear a robot uprising anytime soon. What You'll LearnExamine accessibility and the user experienceUnderstand Information architecture Review docs-as-ecosystem processes Manage technical writersOversee OSS Docs contributions Retrieve and integrate user feedback Build Docs and Education communities Who This Book is ForDevelopers of all levels, VPs of Product/Engineering, Product Managers, and Designers,

Take a systematic approach at identifying intrusions that range from the most basic to the most sophisticated, using Wireshark, an open source protocol analyzer. This book will show you how to effectively manipulate and monitor different conversations and perform statistical analysis of these conversations to identify the IP and TCP information of interest.Next, you'll be walked through a review of the different methods malware uses, from inception through the spread across and compromise of a network of machines. The process from the initial ¿click¿ through intrusion, the characteristics of Command and Control (C2), and the different types of lateral movement will be detailed at the packet level.In the final part of the book, you'll explore the network capture file and identification of data for a potential forensics extraction, including inherent capabilities for the extraction of objects such as file data and other corresponding components in support of a forensics investigation.After completing this book, you will have a complete understanding of the process of carving files from raw PCAP data within the Wireshark tool.What You Will LearnUse Wireshark to identify intrusions into a networkExercise methods to uncover network data even when it is in encrypted formAnalyze malware Command and Control (C2) communications and identify IOCsExtract data in a forensically sound manner to support investigationsLeverage capture file statistics to reconstruct network eventsWho This Book Is ForNetwork analysts, Wireshark analysts, and digital forensic analysts.

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 authors 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 authors 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 authors 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.

This comprehensive study guide delivers 100% coverage of every topic on the challenging CompTIA Linux+ examTake the newest version of the CompTIA Linux+ exam (Exam XK0-005) with complete confidence using the detailed information contained in this highly effective self-study guide. You will get clear explanations of every topic on the test along with special elements that reinforce and teach practical skills, step-by-step exercises, exam tips, and notes. Written by an expert in the field, the book serves both a powerful exam preparation tool and an ideal on-the-job reference.CompTIA Linux+ Certification All-in-One Exam Guide, Second Edition (Exam XK0-005) offers complete coverage of every topic on the test and features more than 180 accurate practice questions. Videos and a downloadable virtual machine is pre-configured for use with specific exercises in each chapter. Sidebars throughout offer real-world insights and practical applications, and end-of-chapter summaries and review questions aid in retention.Offers complete coverage of all exam objectives for the CompTIA Linux+ certificationContains a coupon for 10% off any CompTIA examOnline content includes 180 practice questions and training videos from the author

Learn the tricks of simple procedural generation and how various genres, such as racing simulators, platformers, and roguelikes, can all benefit from these techniques.In this book, you'll learn how to combine hand-crafted content with algorithms to create immersive and beautiful environments. You'll learn how to create a seeding system, so that you can replay great levels with your friends. We'll cover how to create good tilesets, how to use the tilemap editor effectively, and how to inject just the right amount of logic into an otherwise automated machine that is your own personal procedural content generation engine.We will use 2D examples to demonstrate the concepts covered throughout the book. By the time you complete this book, yoüll have a good handle on how to add procedural generation to your games.What You Will LearnLearn to set up the perfect content generation system Master the tools for randomization and repeatabilityUnderstand how much content to craft versus how much to generateWho This Book Is ForBasic familiarity with the Godot engine and GDScript is essential. While all concepts are explained in the book, it can be overwhelming learning these techniques at the same time as learning the engine.

Your one-stop resource to learn, configure and use Ubuntu 22.04 for your day-to-day operations and deploymentsPurchase of the print or Kindle book includes a free eBook in PDF format.Key Features:Get 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 Description:Ubuntu Server is taking the server world by storm - and with 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 further 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 gain all the knowledge you'll need in order to work on real-life Ubuntu Server deployments and become an expert Ubuntu Server administrator that is well-versed in its featureset.What You Will Learn:Install 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 for:This 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.