Nätverk och kommunikation

Internet och datakommunikation utgör i dag grunden för hur vi arbetar, studerar och kommunicerar. Bakom det som för många upplevs som självklart, att information flödar fritt mellan datorer, telefoner och sensorer, finns en avancerad infrastruktur byggd på väldefinierade tekniker och protokoll.Datakommunikation och nätverk ger en heltäckande och lättillgänglig introduktion till hur dessa system är uppbyggda och fungerar. Boken speglar dagens tekniker med kopplingar till deras historiska grund. Framställningen bygger på författarnas mångåriga erfarenhet av undervisning i ämnet vid Lunds tekniska högskola.Denna tredje utgåva av boken har genomgått en omfattande revidering. Äldre teknik har ersatts av moderna tillämpningar och aktuella exempel, bland annat inom accessnät, trådlös kommunikation och IoT. Övningar och förklaringar har uppdaterats för att stödja dagens undervisning och lärandemål.Datakommunikation och nätverk vänder sig till studenter inom ingenjörs- och IT-utbildningar samt till yrkesverksamma som vill fördjupa sin förståelse för hur dagens Internet byggs, fungerar och utvecklas.

Hur fungerar internet? Nätverksteknikens grundstenar är en komplett teoretisk grundkurs inom nätverksteknologi och kräver inga förkunskaper. Boken bygger på en väl beprövad pedagogik som fångar upp alla elever och studenter – stark som svag, erfaren som nybörjare.Nätverksteknikens grundstenar är till största del teoretisk men behandlar enbart den kunskap man har praktisk nytta av som ingenjör eller tekniker inom branschen. Boken fungerar givetvis även utmärkt att läsa fristående ifall man bara är nyfiken och vill lära sig mer om hur internet fungerar.Ett axplock av den teori som boken behandlar är protokoll och teknologier såsom OSI-modellen, LAN/Ethernet, IP-routing/subnetting, TCP/UDP, QoS, E-post, DNS och WWW men även nätverksdesign och nätverkssäkerhet. Boken avslutas med ett kapitel om hur man rent praktiskt konfigurerar en Ciscorouter.

Vilka juridiska hinder eller begränsningar finns för företag som vill köpa eller börja leverera molntjänster (cloud computing)? Om en tvist uppstår mellan en svensk molntjänstköpare och en utländsk leverantör: vilket lands lag ska tillämpas och vilka domstolar får avgöra tvisten? Går det att köpa molntjänster och fortfarande agera i förenlighet med Sveriges och EU:s personuppgiftslagstiftning? Vem äger data som lagras i molnet? Hur bör molntjänstavtal skrivas som skapar förutsättningar för att uppnå kommersiella och andra mål med köp eller försäljning av molntjänster? I Molntjänster. Juridik, affär och säkerhet besvarar och diskuterar Tobias Edvardsson och David Frydlinger dessa och en rad andra frågor. I ett särskilt avsnitt behandlas även Big Data. Boken är tänkt att användas praktiskt av alla som får till uppgift att hantera juridiska frågor rörande molntjänster. I boken redovisas en metod som gör det möjligt att på basis av såväl teknisk som kommersiell förståelse av molntjänster hantera flertalet av de juridiska utmaningar som molntjänster aktualiserar för företag och andra organisationer.

IT-kartan Kartan, verkligheten och framgångsrik IT-kommunikation En guidebok i modernt och värdeskapande förändringsarbete inom IT, digitalisering, strategi- och affärsutveckling. För vd, IT-chef, CIO, ledningsgrupp, styrgrupp eller styrelse som har bestämt sig för att förändra Du ska läsa den här boken om du -Ansvarar för IT och vill kommunicera enklare och bättre med din vd, lednings- eller styrgrupp -Är vd, och vill att din IT-organisation ska kommunicera enklare och bättre med dig och att ledningsgruppen ska kunna ha en bättre diskussion om det som ibland kan uppfattas som svåra frågor -Vill få en IT- och processutvecklingsverktygslåda som är enkel att arbeta med och som fungerar -Vill få utmanande frågor om digitalisering, organisations-, strategi- och affärsutveckling -Vill börja en förändringsresa och få saker gjorda Lars Franzon har lång erfarenhet av ekonomi, strategi och IT i internationell miljö och är grundare och vd av Findistra Management AB som, bland annat, arbetar med de verktyg som beskrivs i boken. Bolagsnamnet Findistra är en sammanslagning av FINans, DIgitalsering och STRAtegi. Om du har synpunkter, frågor kommentarer eller vill börja jobba med verktygen; hör då gärna av dig.

Ett läromedel för kursen Dator- och Nätverksteknik. Läromedlet är skrivet för att ge en djupare kunskap inom datorteknik. Läroboken som är på ca 300 sidor. Den nya versionen av boken V2017 är anpassad till Windows 10. Boken är spiralbunden, tryckt i färg och har vårt smidiga format 16x22,5 cm.

Arbetsboken innehåller kontrollfrågor, instuderingsfrågor och praktiska övningar.

Facit innehåller svar på frågor och övningar från arbetsboken.

Ett läromedel för kursen Dator- och Nätverksteknik. Läromedlet är skrivet för att ge en djupare kunskap inom datorteknik.

Cloud Swedens Guide till Molnet -Tänk om ditt företag eller organisation kunde producera IT flexiblare och till lägre kostnad än tidigare! -Tänk att dessutom kunna skapa utrymme för att transformera IT-avdelningen till en affärsdrivande innovationspartner, kapabel att leverera konkurrensfördelar till din verksamhet! -Tänk om du kunde spara pengar och samtidigt förkorta leveranstiden för dina tjänster samt öka innovationstakten! -Tänk om du med ett enda klick kunde bygga ut din infrastruktur för att möta det ökade behovet av dina egna affärstjänster utan att IT eller andra resurser ses som en flaskhals för tillväxten! -Tänk om du kunde nå ut till fler potentiella kunder med din verksamhet oavsett tid och plats! -Tänk om du kunde byta CapEx mot OpEx och traditionell utveckling med lång leveranstid och dyr förvaltning till snabb och agil förvaltning med löpande vidare-/nyutveckling! =För de flesta beslutsfattare är detta drivkrafterna som gjort att de startat initiativ kring molntjänster. Svaret på frågan ”Varför en Guide till molnet?” är då given: För att ge dig och din organisation en plattform att starta molnresan från. Vi beskriver ett strukturerat och fasindelat angreppssätt – en metod, för hur en organisation kan utforska möjligheterna med molnet fram till att molntjänsten börjar användas. Den ger även stöd med vad som är viktigt i effektfasen, hur molntjänsten kan förvaltningsstyras - förändras, ersättas och i vissa fall avvecklas. Metoden belyser vilka frågeställningar, rekommendationer och tips som är relevanta i de olika faserna. Grupperade i f.n. fem områden; affärsnytta, infrastruktur, säkerhet, juridik och integration.

Internet är fullt av demoner som vi kan leka med. Mejldemoner, webbdemoner, namndemoner och många andra typer av demoner. I Demonerna på internet lär vi oss vad dessa demoner är för något och hur vi kan prata med dem med hjälp av vanliga textkommandon. Det gör att vi får en djupare förståelse för hur internet fungerar och hur allt hänger samman. När vi utforskar demonerna upptäcker vi också några intressanta saker om internet. Bland annat att många av de protokoll och demoner vi använder idag är riktigt gamla. Vi lär oss också att Unixsystem i olika former har spelat en viktig roll för internets utveckling och gör så fortfarande. Laborationerna i boken utförs därför på Unix- eller Linuxsystem. Men även om man använder ett annat operativsystem på sin dator kan man genomföra bokens laborationer. I början går vi igenom hur man kan installera Linux inuti Windows med hjälp av WSL. De som använder macOS har redan ett komplett Unixsystem och kan börja laborera direkt. I boken utforskar vi också ämnen som säkerhet och hacking. Vi gör en egen trojan som startar en bakdörr på datorn. Vi avlyssnar nätverkstrafik med tcpdump och förfalskar mejl genom att prata direkt med mejlservrar på internet. Vi lär oss hur HTTP-protokollet fungerar, hur man kan göra manuella förfrågningar och modifiera de headers som skickas med i HTTP-anropen. Vi testar också att göra en egen liten webbdemon, eller webbserver, som visar en enkel hemsida. Boken är en kort introduktion till TCP/IP och några av de vanligaste protokollen, så som HTTP, SMTP, POP3, NTP och DNS. Den är skriven för att vara lättläst, och man behöver inte genomföra bokens alla laborationer om man inte vill – den går lika bra att läsa i sängen eller i soffan. Jack-Benny Persson har många års erfarenhet av främst Linux- och FreeBSD-system, men också av programmering. Han har tidigare skrivit flera böcker om bland annat Python, C, Ansible och Linux. Han har studerat elektronik, nätverk, Linux, säkerhet och senast journalistiskt skrivande. Han driver idag bokförlaget CyberInfo Sverige och konsultföretaget CyberInfo Consulting Sweden AB.

Docker från grunden lär dig allt du behöver för att komma igång med Docker på egen hand. Du lär dig alltifrån vad Docker är, hur du startar och stoppar containrar, hur du paketerar egna program i avbilder, hur du bygger ett eget Docker-register till hur du sätter upp tjänster på datorn med Docker. Du lär dig även att automatisera hela miljöer med Docker Compose. Docker har förändrat it-världen på kort tid. Det går nu att bygga kompletta miljöer och fritt flytta dem mellan olika plattformar – något som förut varit tidskrävande och omständligt. Det går dessutom att automatisera så att en hel miljö kan startas och stoppas med ett enda kommando. Även för utvecklaren har saker förändrats och förenklats med Docker. Hon kan nu paketera hela sitt program som en Docker-avbild och dela den med omvärlden på exempelvis Docker Hub, och den går att köra på i princip vilken dator som helst. Boken behandlar både traditionella Docker som körs under root-användaren, men även Docker i rootless-mode. Boken är praktiskt orienterad med en lång rad exempel och övningar. Det finns även ett par större projekt i boken. Efter varje kapitel finns en rad övningsuppgifter. En del av uppgifterna går utanför vad boken lärt ut för att du ska hitta lösningar på egen hand. Ett helt kapitel är dedikerat åt säkerhet. Här ser vi också exempel på attacker mot Docker och hur man kan bryta sig ur en container. I andra utgåvan har delar av boken reviderats för Docker Compose version 2, som numera är ett plugin till Docker istället för ett fristående verktyg. Jack-Benny Persson har många års erfarenhet av främst Linux- och FreeBSD-system, men också av programmering. Han har tidigare skrivit flera böcker om bland annat Python, C och Linux. Han har studerat elektronik, nätverk, Linux, säkerhet och senast journalistiskt skrivande. Han driver idag CyberInfo Sverige där han även arbetar som Linuxkonsult.

Build your Ubuntu 24.04 skills with hands-on guidance from an Ubuntu Core developer, covering desktop usage, security best practices, containers, and development environment setupKey FeaturesMaster Ubuntu 24.04 through a structured learning path, from initial setup and customization to advanced development workflowsAvoid common mistakes with practical tips for ensuring stability, security, and clean configurationLearn directly from an Ubuntu Core developer as he shares his insider knowledge and best practicesPurchase of the print or Kindle book includes a free PDF eBookBook DescriptionUbuntu 24.04 brings powerful new features, but most users barely scratch the surface of its potential. This book transforms you from a basic user into an Ubuntu power user by guiding you through setup, security, and development workflows step by step. Ken VanDine reveals insider knowledge and proven strategies that turn Ubuntu into a stable, secure, and productive development platform.Starting with Ubuntu’s mission, release lifecycles, and what’s new in 24.04, you’ll learn how to install the system, customize your desktop, and use the command line to work more efficiently. The book shows you how to apply updates, activate Ubuntu Pro, configure firewalls, and secure data with full disk encryption before covering topics often overlooked by desktop users. Moving into advanced territory, this book covers container-based development using LXD, working with virtual machines through Multipass, and setting up Kubernetes with MicroK8s. Whether you’re building cloud-native apps or data science projects, you’ll benefit from reliable and repeatable Ubuntu workflows. Beyond the technical skills, you'll discover how to tap into Ubuntu's global community for ongoing support and opportunities to contribute. This book is ideal for both newcomers eager to accelerate their Linux journey and seasoned professionals seeking to maximize their Ubuntu expertise.What you will learnUnderstand Ubuntu's software lifecycles to keep your system updated and secureConnect with Ubuntu communities to seek help and contribute to the ecosystemMaster the command line to improve flexibility and efficiencyConfigure firewalls to manage network traffic securelyProtect your data with full disk encryption for comprehensive securityDifferentiate between Snap and Debian packages to make informed software installation choicesBuild and manage containerized environments with UbuntuWho this book is forThis book is for software engineers, DevOps professionals, data scientists, systems administrators, and tech enthusiasts who want to get hands-on with Ubuntu 24.04. Whether you're new to Linux or looking to improve your setup, this book shows you how to build a secure desktop, use the command line with confidence, and create clean, reliable development environments. A basic understanding of operating systems is helpful but not required.

The OpenBSD packet filter, PF, is central to the OpenBSD and FreeBSD network toolbox. With more and more services placing high demands on bandwidth and an increasingly hostile Internet environment, no sysadmin can afford to be without PF expertise. The fourth edition of The Book of PF covers the most up-to-date developments in PF, including new content on IPv6, dual stack configurations, the 'queues and priorities' traffic-shaping system, NAT and redirection, wireless networking, spam fighting, failover provisioning, logging, and more. You'll also learn how to: Create rule sets for all kinds of network traffic, IPv4 and IPv6 both, whether crossing a simple LAN, hiding behind NAT, traversing DMZs, or spanning bridges or wider networks. Set up wireless networks with access points, and lock them down using authpf and special access restrictions. Maximize flexibility and service availability via CARP, relayd, and redirection. Build adaptive firewalls to proactively defend against attackers and spammers. Harness OpenBSD's latest traffic-shaping system to keep your network responsive, or use ALTQ and Dummynet configurations on FreeBSD to full effect. Stay in control of your traffic with monitoring and visualization tools (including NetFlow). The Book of PF is the essential guide to building a secure network with PF. With a little effort and this book, you'll be well prepared to unlock PF's full potential. Covers OpenBSD 7.6 and FreeBSD 14.x.

Understanding and employing cryptography has become central for securing virtually any digital application, whether user app, cloud service, or even medical implant.Heavily revised and updated, the long-awaited second edition of Understanding Cryptography follows the unique approach of making modern cryptography accessible to a broad audience, requiring only a minimum of prior knowledge. After introducing basic cryptography concepts, this seminal textbook covers nearly all symmetric, asymmetric, and post-quantum cryptographic algorithms currently in use in applications—ranging from cloud computing and smart phones all the way to industrial systems, block chains, and cryptocurrencies.Topics and features:Opens with a foreword by cryptography pioneer and Turing Award winner, Ron RivestHelps develop a comprehensive understanding of modern applied cryptographyProvides a thorough introduction to post-quantum cryptography consisting of the three standardized cipher familiesIncludes for every chapter a comprehensive problem set, extensive examples, and a further-reading discussionCommunicates, using a unique pedagogical approach, the essentials about foundations and use in practice, while keeping mathematics to a minimumSupplies up-to-date security parameters for all cryptographic algorithmsIncorporates chapter reviews and discussion on such topics as historical and societal contextThis must-have book is indispensable as a textbook for graduate and advanced undergraduate courses, as well as for self-study by designers and engineers.The authors have more than 20 years’ experience teaching cryptography at various universities in the US and Europe. In addition to being renowned scientists, they have extensive experience with applying cryptography in industry, fromwhich they have drawn important lessons for their teaching.

The latest edition of the gold standard in Linux+ certification exam prep and skills reinforcement In the newly revised sixth edition of the CompTIA Linux+ Study Guide: Exam XK0-006, veteran system and network administrator Richard Blum delivers a fully up-to-date guide to the challenging CompTIA Linux+ certification exam, as well as a concise discussion of the skills and knowledge you'll need to succeed in the real world as a Linux systems professional. The book contains clear and straightforward information on all Linux administration topics, including system management, services and user management, security, automation, orchestration, scripting, and troubleshooting. You'll also find: Coverage of every subject tested by the newly updated XK0-006 Linux+ certification examNew material for DevOps engineers seeking to understand how to deploy applications on different Linux distributions and cloud platformsIntuitively organized quick-reference information perfect for newly minted system and network administrators working with Linux operating systemsComplimentary access to the Sybex online learning environment, including the online test bank, a practice assessment test, chapter review questions, flashcards, and a searchable key term glossaryPerfect for network and system admins studying for the new Linux+ certification exam, the CompTIA Linux+ Study Guide is also a must-read for Linux admins and IT professionals looking to update their skillset, as well as certification candidates seeking a roadmap to attaining further Linux certifications.

The industry gold standard in Linux guides, fully updatedIn the newly updated eleventh edition of the Linux Bible, veteran Linux author and trainer Christopher Negus walks you through the latest and most popular Linux distributions, including Red Hat Enterprise 9, Ubuntu 24 LTS, and Fedora 41. Whether you're a brand new or power user, you'll learn hands-on ways to become skilled at the world's most important operating system.This edition expands coverage of Linux in cloud environments, such as the AWS cloud, and on-premises environments (with enhanced data center management features). You'll learn techniques for managing storage, users, and security, while familiarizing yourself with administrative techniques using the clear explanations and step-by-step instructions that this series is known for.Also inside: Get Linux up and running quickly and efficientlyMaster basic operations and tackle more advanced tasksStart using Git to draw on and contribute to the massive open source software worldSet up an AI chatbot to run large language models (LLMs) in LinuxUnderstand the latest tools that make administering Linux servers and networks much simplerLinux Bible, 11th Edition is the single, comprehensive resource you need to get you on track in a flash. Grab your copy today.

Performance tuning is an experimental science, but that doesn't mean engineers should resort to guesswork and folklore to get the job done. Yet that's often the case. With this practical book, intermediate to advanced Java technologists working with complex platforms will learn how to tune Java cloud applications for performance using a quantitative, verifiable, and repeatable approach.In response to the ubiquity of cloud computing, this updated edition of Optimizing Cloud Native Java addresses topics that are key to high performance of Java applications in the cloud. Many resources on performance tend to focus on the theory and internals of Java virtual machines, but this book discusses the low-level technical aspects within the context of performance-tuning practicalities and examines a wide range of aspects.With this book, you will:Learn how Java principles and technology make the best use of modern hardware, operating systems, and cloud stacksExamine the pitfalls of measuring Java performance numbers and the drawbacks of microbenchmarkingUnderstand how to package, deploy, operate, and debug Java/JVM applications in modern cloud environmentsApply emerging observability approaches to obtain deep understanding of cloud native applicationsUse Java language performance techniques including concurrent and distributed forms

The software development ecosystem is constantly changing, providing a constant stream of new tools, frameworks, techniques, and paradigms. Over the past few years, incremental developments in core engineering practices for software development have created the foundations for rethinking how architecture changes over time, along with ways to protect important architectural characteristics as it evolves. This practical guide ties those parts together with a new way to think about architecture and time.

If your organization plans to modernize services and move to the cloud from legacy software or a private cloud on premises, this book is for you. Software developers, solution architects, cloud engineers, and anybody interested in cloud technologies will learn fundamental concepts for cloud computing, migration, transformation, and development using Microsoft Azure. Author and Microsoft MVP Jonah Carrio Andersson guides you through cloud computing concepts and deployment models, the wide range of modern cloud technologies, application development with Azure, team collaboration services, security services, and cloud migration options in Microsoft Azure. You'll gain insight into the Microsoft Azure cloud services that you can apply in different business use cases, software development projects, and modern solutions in the cloud. You'll also become fluent with Azure cloud migration services, serverless computing technologies that help your development team work productively, Azure IoT, and Azure cognitive services that make your application smarter. This book also provides real-world advice and best practices based on the author's own Azure migration experience. Gain insight into which Azure cloud service best suits your company's particular needs Understand how to use Azure for different use cases and specific technical requirements Start developing cloud services, applications, and solutions in the Azure environment Learn how to migrate existing legacy applications to Microsoft Azure

Create LLM-powered autonomous agents and intelligent assistants that can adapt to your specific business and personal needs.Each job you take on or decision you make requires some of your precious time. AI Agents in Action teaches you to develop and deliver LLM-based assistants and agents that can independently process information, make decisions, and learn from interactions. These powerful autonomous AI agents and interactive assistants handle routine tasks behind the scenes so you can focus on other things.In AI Agents in Action, author Micheal Lanham combines cutting-edge academic research with practical experience to help you:

Understand AI agent behavior patterns Design and deploy intelligent agents Use the OpenAI Assistants API and other tools Manage knowledge and memory Build in feedback loops so agents learn from their actions Design collaborative multi-agent systems Create agents with speech and vision features

From script-free customer service chatbots to fully independent agents operating out of sight, AI-powered assistants are a groundbreaking advance in machine intelligence. In AI Agents in Action you'll learn a reliable, tested framework for developing working agents for a variety of practical business and personal tasks.

This textbook describes the theory and methodology of digital forensic examinations, presenting examples developed in collaboration with police authorities to ensure relevance to real-world practice. The coverage includes discussions on forensic artifacts and constraints, as well as forensic tools used for law enforcement and in the corporate sector. Emphasis is placed on reinforcing sound forensic thinking, and gaining experience in common tasks through hands-on exercises.This enhanced third edition describes practical digital forensics with open-source tools and includes an outline of current challenges and research directions.Topics and features:Outlines what computer forensics is, and what it can do, as well as what its limitations areDiscusses both the theoretical foundations and the fundamentals of forensic methodologyReviews broad principles that are applicable worldwideExplains how to find and interpret several important artifactsDescribes free and open-source software toolsFeatures content on corporate forensics, ethics, SQLite databases, triage, and memory analysisIncludes new supporting video lectures on YouTubeThis easy-to-follow primer is an essential resource for students of computer forensics, and will also serve as a valuable reference for practitioners seeking instruction on performing forensic examinations.

Almost 50 years ago, the C language defined modern computer programming. This book shows you why C is still as powerful and popular as ever, with an inside look at the new C23 standard.For programs that need to be small, fast, and unfailingly reliable, C is still the gold standard. Whether you're writing embedded code, low-level system routines, or high-performance applications, C is up to the challenge. This unique book by Jens Gustedt, a member of the ISO C standards committee, gets you up to speed with C23.In Modern C, Third Edition you'll:

Learn C basics, core features, and advanced concepts Leverage major C23 improvements for security, reliability, and performance Write portable code that runs anywhere Build multi-threaded applications with atomics and synchronization Create robust and resilient software with error handling Use type-generic programming for reusable code

C powers more software than any other language—from embedded devices to distributed systems. In Modern C, Third Edition you'll learn to harness C's full potential using the latest tools and techniques. After a quick review of the fundamentals perfect for beginners or coders who haven't used C in a while, this book guides you to mastery of C23, the latest ISO standard.

Your complete and accessible guide to all aspects of digital marketing, from tools and channels to strategy, planning and marketing management. This fully updated third edition explores the application of AI in marketing, how digital disruption leads to transformation, and the Metaverse and its different realities. It also highlights the UN Sustainable Development Goals in each chapter and how these apply to marketing. With an excellent blend of theory, research, practice and application, key features include: • New case studies from a range of global organizations from 20 countries, including Back Market, Spotify and Nykaa. • A new running case study throughout the book which looks at Uber. • Ethical Insights which highlight responsible marketing and support PRME. • Professional Skills which address employability.• Discover More and Digital Tools text boxes. • Activities, exercises and Smartphone Sixty Seconds® icebreakers which help students apply their understanding of each chapter. Essential reading for all students and practitioners of digital marketing.Looking for a step-by-step guide to creating a digital marketing plan? Save by buying Digital Marketing with Annmarie Hanlon's Digital Marketing Planner.

Deploy, set up, and deliver network services with Windows Server 2025, along with exploring its new features, security, and Microsoft's role-based certificationsGet With Your Book: PDF Copy, AI Assistant, and Next-Gen Reader FreeKey FeaturesInstall and configure Windows Server 2025 with best practices in different environmentsEnhance server security by implementing advanced features, such as secure communication protocols and authentication mechanismsPrepare thoroughly for the AZ-800 certification exam with practical preparation tipsBook DescriptionIn this extensively updated fourth edition, veteran author Bekim Dauti delivers practical, real-world guidance for deploying, managing, and securing modern server environments, with a strong focus on virtualization and hybrid cloud integration. Ideal for IT professionals, system administrators, and certification candidates, this hands-on guide equips you to confidently manage, update, and troubleshoot Windows Server 2025 environments using Microsoft-recommended best practices.You’ll be introduced to network fundamentals and installation procedures, and go through post-installation tasks, directory services, and adding roles. This updated edition covers the new and enhanced features of Windows Server 2025 extensively, including Active Directory Domain Services enhancements, SMB over QUIC, advanced security features, and hotpatching with Azure Arc. Additionally, numerous questions and answers at the end of each chapter help you test your knowledge of the concepts covered.By the end of this book, you’ll be fully prepared to ensure server stability, security, and performance, and to pass the Microsoft AZ-800 Administering Windows Server Hybrid Core Infrastructure exam with confidence.What you will learnManage directory services effectively, including setting up and maintaining AD DS rolesImplement and troubleshoot group policies to enforce consistent configurations across the networkUtilize virtualization techniques to optimize server resources and enhance scalabilityMaintain server uptime and reliability through efficient hotpatching practices for applying updatesPrepare for the AZ-800 certification exam with exam preparation strategies, practical tips, and chapter-end questions and answers to test your knowledge and track your progress.Who this book is forThis book is for IT professionals, such as system administrators, network engineers, and IT managers, who are starting their journey in Windows Server 2025 administration. It is also suitable for individuals looking to update their knowledge with the latest tools and features in Windows Server 2025. Whether you’re responsible for managing server infrastructure, ensuring network security, or optimizing server performance, this book will provide you with the essential skills and knowledge to excel in your role.

Concrete tools, techniques, and processes to align software architecture with your business domains, organizational design, team topologies, and corporate strategy.

Written for anyone who makes decisions about software architecture or organization design, including architects, CTOs, principal engineers, and tech leads.

In Architecture Modernization: Socio-technical alignment of software, strategy, and structure you'll learn how to:

Design architecture, business domains, and team topologies as independent value streams oriented to your business strategy Plan and lead an evolutionary modernization initiative Upskill architecture practices in your organization to create durable change Utilize collaborative product development techniques like Event Storming and Wardley Mapping Model domains and subdomains with principles, heuristics, and hands-on techniques

About the technology

You can't safely separate an organization's software architecture from its business objectives, corporate strategy, or team structure. Architecture Modernization shows you how to turn the practice of designing software into a transformative process for your entire company. This unique guide reveals a collaborative holistic approach to software design that identifies the value modernization can bring to your business's domains. You'll quickly reduce ineffective dependencies and empower your teams to make fast decisions and even faster production deployments.

Are you serious about network security? Then check out SSH, the Secure Shell, which provides key-based authentication and transparent encryption for your network connections. It's reliable, robust, and reasonably easy to use, and both free and commercial implementations are widely available for most operating systems. While it doesn't solve every privacy and security problem, SSH eliminates several of them very effectively. Everything you want to know about SSH is in our second edition of SSH, The Secure Shell: The Definitive Guide. This updated book thoroughly covers the latest SSH-2 protocol for system administrators and end users interested in using this increasingly popular TCP/IP-based solution. How does it work? Whenever data is sent to the network, SSH automatically encrypts it. When data reaches its intended recipient, SSH decrypts it. The result is "transparent" encryption-users can work normally, unaware that their communications are already encrypted. SSH supports secure file transfer between computers, secure remote logins, and a unique "tunneling" capability that adds encryption to otherwise insecure network applications.With SSH, users can freely navigate the Internet, and system administrators can secure their networks or perform remote administration. Written for a wide, technical audience, SSH, The Secure Shell: The Definitive Guide covers several implementations of SSH for different operating systems and computing environments. Whether you're an individual running Linux machines at home, a corporate network administrator with thousands of users, or a PC/Mac owner who just wants a secure way to telnet or transfer files between machines, our indispensable guide has you covered. It starts with simple installation and use of SSH, and works its way to in-depth case studies on large, sensitive computer networks. No matter where or how you're shipping information, SSH, The Secure Shell: The Definitive Guide will show you how to do it securely.

CISSP Study Guide - fully updated for the 2024 CISSP Body of KnowledgeISC2 Certified Information Systems Security Professional (CISSP) Official Study Guide, 10th Edition has been completely updated based on the latest 2024 CISSP Detailed Content Outline. This bestselling Sybex Study Guide covers 100% of the CISSP objectives. You'll prepare smarter and faster with Sybex thanks to expert content, knowledge from our real-world experience, access to the Sybex online interactive learning environment, and much more. Reinforce what you've learned with key topic Study Essentials and chapter review questions.The book’s co-authors bring decades of experience as cybersecurity practitioners and educators, integrating real-world expertise with the practical knowledge you'll need to successfully prove your CISSP mastery. Combined, they've taught cybersecurity concepts to millions of students through their books, video courses, and live training programs.Along with the book, you also get access to Sybex's superior online interactive learning environment that includes: Over 900 practice test questions with complete answer explanations. This includes all of the questions from the book plus four additional online-only practice exams, each with 125 unique questions. You can use the online-only practice exams as full exam simulations. Our questions will help you identify where you need to study more.More than 1000 Electronic Flashcards to reinforce your learning and give you last-minute test prep A searchable glossary in PDF to give you instant access to the key terms you need to know Audio Review. Author Mike Chapple reads the Study Essentials for each chapter providing you with more than 2 hours of up-to-date audio review for yet another way to reinforce your knowledge as you prepare.Coverage of all of the CISSP topics in the book means you'll be ready for: Security and Risk ManagementAsset SecuritySecurity Architecture and EngineeringCommunication and Network SecurityIdentity and Access Management (IAM)Security Assessment and TestingSecurity OperationsSoftware Development Security