Know-how zur Abwehr von Hacker-Angriffen
Mehr Sicherheit fur Netze, Systeme und Anwendungen
Praxis-Leitfaden mit konzeptionellem Ansatz
Anschaulich durch zeitlose Beispiele

Ein Wettbewerb der Hacker? Wer knackt am schnellsten das Sicherheitssystem?
Die andere Seite - die Sicherheitsexperten - mussen in der Lage sein, Rechnernetze, Systeme und Anwendungen aus der Sicht eines Angreifers zu verstehen, um Sicherheitslucken erkennen und effizient schliessen zu konnen. Dabei unterstutzt sie das Buch.
Das Thema Sicherheit wird hier pragmatisch betrachtet. Die Sicherheit einer Komponente hangt meist direkt von einer oder mehreren anderen Komponenten ab, wobei diese Abhangigkeiten komplex und schwer erfassbar sind.
Auf Basis der Erfahrungen, die im Rahmen des "Hacker Contest" gesammelt wurden, vermittelt das Buch praxisnah die Grundsatze des Hackens bzw. Crackens und prinzipieller Angriffskonzepte.
Die Autoren sind kontiunierlich an der Konzeption und Durchfuhrung des Hacker Contest beteiligt. Sie haben bereits im Informatik-Spektrum einen Artikel zum Thema veroffentlich, der auf grosse Resonanz stiess."

With this book, Christopher Kormanyos delivers a highly practical guide to programming real-time embedded microcontroller systems in C++. It is divided into three parts plus several appendices. Part I provides a foundation for real-time C++ by covering language technologies, including object-oriented methods, template programming and optimization. Next, part II presents detailed descriptions of a variety of C++ components that are widely used in microcontroller programming. It details some of C++'s most powerful language elements, such as class types, templates and the STL, to develop components for microcontroller register access, low-level drivers, custom memory management, embedded containers, multitasking, etc. Finally, part III describes mathematical methods and generic utilities that can be employed to solve recurring problems in real-time C++. The appendices include a brief C++ language tutorial, information on the real-time C++ development environment and instructions for building GNU GCC cross-compilers and a microcontroller circuit. For this fourth edition, the most recent specification of C++20 is used throughout the text. Several sections on new C++20 functionality have been added, and various others reworked to reflect changes in the standard. Also several new example projects ranging from introductory to advanced level are included and existing ones extended, and various reader suggestions have been incorporated. Efficiency is always in focus and numerous examples are backed up with runtime measurements and size analyses that quantify the true costs of the code down to the very last byte and microsecond. The target audience of this book mainly consists of students and professionals interested in real-time C++. Readers should be familiar with C or another programming language and will benefit most if they have had some previous experience with microcontroller electronics and the performance and size issues prevalent in embedded systems programming.

Is Windows giving you pause? Ready to make the leap to the Mac instead? There has never been a better time to switch from Windows to Mac, and this incomparable guide will help you make a smooth transition. New York Times columnist and Missing Manuals creator David Pogue gets you past three challenges: transferring your stuff, assembling Mac programs so you can do what you did with Windows, and learning your way around Mac OS X.Learning to use a Mac is not a piece of cake, but once you do, the rewards are oh-so-much better. No viruses, worms, or spyware. No questionable firewalls, inefficient permissions, or other strange features. Just a beautiful machine with a thoroughly reliable system. Whether you're using Windows XP or Vista, we've got you covered. If you're ready to take on Mac OS X Snow Leopard, the latest edition of this bestselling guide tells you everything you need to know: Transferring your stuff -- Moving photos, MP3s, and Microsoft Office documents is the easy part. This book gets you through the tricky things: extracting your email, address book, calendar, Web bookmarks, buddy list, desktop pictures, and MP3 files.Re-creating your software suite -- Big-name programs (Word, Photoshop, Firefox, Dreamweaver, and so on) are available in both Mac and Windows versions, but hundreds of other programs are available only for Windows. This guide identifies the Mac equivalents and explains how to move your data to them.Learning Snow Leopard -- Once you've moved into the Mac, a final task awaits: Learning your way around. Fortunately, you're in good hands with the author of Mac OS X: The Missing Manual, the #1 bestselling guide to the Macintosh.

Moving from Windows to a Mac successfully and painlessly is the one thing Apple does not deliver. Switching to the Mac: The Missing Manual, Snow Leopard Edition is your ticket to a new computing experience.

With this book, Christopher Kormanyos delivers a highly practical guide to programming real-time embedded microcontroller systems in C++. It is divided into three parts plus several appendices. Part I provides a foundation for real-time C++ by covering language technologies, including object-oriented methods, template programming and optimization. Next, part II presents detailed descriptions of a variety of C++ components that are widely used in microcontroller programming. It details some of C++'s most powerful language elements, such as class types, templates and the STL, to develop components for microcontroller register access, low-level drivers, custom memory management, embedded containers, multitasking, etc. Finally, part III describes mathematical methods and generic utilities that can be employed to solve recurring problems in real-time C++. The appendices include a brief C++ language tutorial, information on the real-time C++ development environment and instructions for building GNU GCC cross-compilers and a microcontroller circuit. For this fourth edition, the most recent specification of C++20 is used throughout the text. Several sections on new C++20 functionality have been added, and various others reworked to reflect changes in the standard. Also several new example projects ranging from introductory to advanced level are included and existing ones extended, and various reader suggestions have been incorporated. Efficiency is always in focus and numerous examples are backed up with runtime measurements and size analyses that quantify the true costs of the code down to the very last byte and microsecond. The target audience of this book mainly consists of students and professionals interested in real-time C++. Readers should be familiar with C or another programming language and will benefit most if they have had some previous experience with microcontroller electronics and the performance and size issues prevalent in embedded systems programming.

In order to thoroughly understand what makes Linux tick and why it works so well on a wide variety of systems, you need to delve deep into the heart of the kernel. The kernel handles all interactions between the CPU and the external world, and determines which programs will share processor time, in what order. It manages limited memory so well that hundreds of processes can share the system efficiently, and expertly organizes data transfers so that the CPU isn't kept waiting any longer than necessary for the relatively slow disks.

The third edition of "Understanding the Linux Kernel" takes you on a guided tour of the most significant data structures, algorithms, and programming tricks used in the kernel. Probing beyond superficial features, the authors offer valuable insights to people who want to know how things really work inside their machine. Important Intel-specific features are discussed. Relevant segments of code are dissected line by line. But the book covers more than just the functioning of the code; it explains the theoretical underpinnings of why Linux does things the way it does.

This edition of the book covers Version 2.6, which has seen significant changes to nearly every kernel subsystem, particularly in the areas of memory management and block devices. The book focuses on the following topics:

Memory management, including file buffering, process swapping, and Direct memory Access (DMA)

The Virtual Filesystem layer and the Second and Third Extended Filesystems

Process creation and scheduling

Signals, interrupts, and the essential interfaces to device drivers

Timing

Synchronization within the kernel

Interprocess Communication (IPC)

Program execution

"Understanding the Linux Kernel" will acquaint you with all the inner workings of Linux, but it's more than just an academic exercise. You'll learn what conditions bring out Linux's best performance, and you'll see how it meets the challenge of providing good system response during process scheduling, file access, and memory management in a wide variety of environments. This book will help you make the most of your Linux system.

Bei Mac OS X handelt es sich um das jA1/4ngste Betriebssystem von Apple Computer. Es unterscheidet sich vom VorgAnger Mac OS 9 nicht nur durch eine Vielzahl von neuen Funktionen und durch die neue BenutzeroberflAche Aqua, sondern vor allen Dingen durch die Nutzung von Mach und BSD als Basis fA1/4r seine Implementierung. Mac OS X baut direkt auf den lange erprobten und weit verbreiteten Betriebssystemen FreeBSD und NetBSD auf.

Rafael Kobylinski, Manager System Engineers bei Apple Deutschland, gibt einen Aoeberblick A1/4ber Mac OS X aus der Sicht eines mit BSD- und Unix-Systemen vertrauten, fortgeschrittenen Anwenders. Das Buch richtet sich damit an erfahrene Mac OS X Anwender sowie Unix/Linux-Quereinsteiger.

It seems as if everyone is writing applications for Apple's iPhone and iPad, but how do they all do it? It's best to learn Objective-C, the native language of both the iOS and Mac OS X, but where to begin? Right here, even if you've never programmed before

Objective-C for Absolute Beginners will teach you how to write software for your Mac, iPhone, or iPad using Objective-C, an elegant and powerful language with a rich set of developer tools. Using a hands-on approach, you'll learn to think in programming terms, how to use Objective-C to build program logic, and how to write your own applications and apps.

With over 50 collective years in software development and based on an approach pioneered at Carnegie Mellon University, the authors have developed a remarkably effective approach to learning Objective-C. Since the introduction of Apple's iPhone, the authors have taught hundreds of absolute beginners how to develop Mac, iPhone, and iPad apps, including many that became popular apps in the iTunes App Store. What you'll learn The fundamentals of computer programming: how to understand variables, design data structures, and work with file systems The logic of object-oriented programming: how to use Classes, Objects, and Methods The flexibility of Apple's developer tools: how to install Xcode and write programs in Objective-C The power of Cocoa and Cocoa touch: how to make Mac OS X applications or iOS apps that do cool stuff Who this book is for

Everyone This book is for anyone who wants to learn to develop applications for the Mac or apps for the iPhone and iPad using the Objective-C programming language. No previous programming experience is necessary. Table of Contents Becoming a Great iPhone/iPad or Mac Programmer Programming Basics It's All About the Data Making Decisions About...and Planning Program Flow Object Oriented Programming with Objective-C Introducing Objective-C and Xcode Objective-C Classes, Objects, and Methods Programming Basics in Objective-C Comparing Data Creating User Interfaces with Interface Builder Memory, Addresses, and Pointers Debugging Programs with Xcode Storing Information Protocols and Delegates

The definitive guide-fully updated for Windows 10 and Windows Server 2016 Delve inside Windows architecture and internals, and see how core components work behind the scenes. Led by a team of internals experts, this classic guide has been fully updated for Windows 10 and Windows Server 2016. Whether you are a developer or an IT professional, you'll get critical, insider perspectives on how Windows operates. And through hands-on experiments, you'll experience its internal behavior firsthand-knowledge you can apply to improve application design, debugging, system performance, and support. This book will help you: * Understand the Window system architecture and its most important entities, such as processes and threads * Examine how processes manage resources and threads scheduled for execution inside processes * Observe how Windows manages virtual and physical memory * Dig into the Windows I/O system and see how device drivers work and integrate with the rest of the system * Go inside the Windows security model to see how it manages access, auditing, and authorization, and learn about the new mechanisms in Windows 10 and Server 2016

As an open operating system, Unix can be improved on by anyone and everyone: individuals, companies, universities, and more. As a result, the very nature of Unix has been altered over the years by numerous extensions formulated in an assortment of versions. Today, Unix encompasses everything from Sun's Solaris to Apple's Mac OS X and more varieties of Linux than you can easily name. The latest edition of this bestselling reference brings Unix into the 21st century. It's been reworked to keep current with the broader state of Unix in today's world and highlight the strengths of this operating system in all its various flavors. Detailing all Unix commands and options, the informative guide provides generous descriptions and examples that put those commands in context. Here are some of the new features you'll find in Unix in a Nutshell, Fourth Edition: * Solaris 10, the latest version of the SVR4-based operating system, GNU/Linux, and Mac OS X * Bash shell (along with the 1988 and 1993 versions of ksh) * tsch shell (instead of the original Berkeley csh) * Package management programs, used for program installation on popular GNU/Linux systems, Solaris and Mac OS X * GNU Emacs Version 21 * Introduction to source code management systems * Concurrent versions system * Subversion version control system * GDB debugger As Unix has progressed, certain commands that were once critical have fallen into disuse. To that end, the book has also dropped material that is no longer relevant, keeping it taut and current. If you're a Unix user or programmer, you'll recognize the value of this complete, up-to-date Unix reference. With chapter overviews, specific examples, and detailed command.

Windows XP can be a great tool, but it is all too easy to trip over Windows XP's annoying traits more often than you leverage its productivity. Windows XP power-users troll online resources, documentation, and the expertise (or lucky finds) of friends for valuable tips and tricks--a keyboard shortcut here, an undocumented double-click there--to eliminate annoyances, save time, and take control of their Windows XP. But what if there was an easier way? This new book presents literally hundreds of problems and solutions, amazing power tips, cool tricks, and clever workarounds in one clearly organized, easy to use, and portable resource. Truly insightful and amusing, Windows XP Hints gives Windows XP users practical hints for everything from the desktop to Office programs to the registry, and includes documented (but little-known) tips as well as previously undocumented tricks. Windows XP Hints moves far beyond mere productivity and explores what's possible with Windows XP--including cool things you probably never thought of doing. An understanding of Windows XP basics will get the job done. But discovering the most useful I didn t know that! tips and shortcuts will make using Windows

Optimize Windows system reliability and performance with Sysinternals IT pros and power users consider the free Windows Sysinternals tools indispensable for diagnosing, troubleshooting, and deeply understanding the Windows platform. In this extensively updated guide, Sysinternals creator Mark Russinovich and Windows expert Aaron Margosis help you use these powerful tools to optimize any Windows system's reliability, efficiency, performance, and security. The authors first explain Sysinternals' capabilities and help you get started fast. Next, they offer in-depth coverage of each major tool, from Process Explorer and Process Monitor to Sysinternals' security and file utilities. Then, building on this knowledge, they show the tools being used to solve real-world cases involving error messages, hangs, sluggishness, malware infections, and much more. Windows Sysinternals creator Mark Russinovich and Aaron Margosis show you how to: Use Process Explorer to display detailed process and system information Use Process Monitor to capture low-level system events, and quickly filter the output to narrow down root causes List, categorize, and manage software that starts when you start or sign in to your computer, or when you run Microsoft Office or Internet Explorer Verify digital signatures of files, of running programs, and of the modules loaded in those programs Use Autoruns, Process Explorer, Sigcheck, and Process Monitor features that can identify and clean malware infestations Inspect permissions on files, keys, services, shares, and other objects Use Sysmon to monitor security-relevant events across your network Generate memory dumps when a process meets specified criteria Execute processes remotely, and close files that were opened remotely Manage Active Directory objects and trace LDAP API calls Capture detailed data about processors, memory, and clocks Troubleshoot unbootable devices, file-in-use errors, unexplained communication, and many other problems Understand Windows core concepts that aren't well-documented elsewhere

Postfix is a Mail Transfer Agent (MTA): software that mail servers use to route email. Postfix is highly respected by experts for its secure design and tremendous reliability. And new users like it because it's so simple to configure. In fact, Postfix has been adopted as the default MTA on Mac OS X. It is also compatible with sendmail, so that existing scripts and programs continue to work seamlessly

after it is installed.

Postfix was written by well-known security expert Wietse Venema, who reviewed this book intensively during its entire development. Author Kyle Dent covers a wide range of Postfix tasks, from virtual hosting to controls for unsolicited commercial email.

While basic configuration of Postfix is easy, every site has unique needs that call for a certain amount of study. This book, with careful background explanations and generous examples, eases readers from the basic configuration to the full power of Postfix. It discusses the Postfix interfaces to various tools that round out a fully scalable and highly secure email system. These tools include POP, IMAP, LDAP, MySQL, Simple Authentication and Security Layer (SASL), and Transport Layer Security (TLS, an upgrade of SSL). A reference section for Postfix configuration parameters and an installation guide are included.

Topics include:

Basic installation and configuration

DNS configuration for email

Working with POP/IMAP servers

Hosting multiple domains (virtual hosting)

Mailing lists

Handling unsolicited email (spam blocking)

Security through SASL and TLS

From compiling and installing Postfix to troubleshooting, "Postfix: The Definitive Guide" offers system administrators and anyonewho deals with Postfix an all-in-one, comprehensive tutorial and reference to this MTA.

Networks continue to grow in size, complexity, and importance, most businesses want their networks to be flexible, reliable, and cost efficient. Network operators need to avoid downtime due to human error, and they need to manage growing networks without increasing network support staff. How can you balance these competing realities? With automation!This practical guide will help you understand the automation features of Junos, show you the tools available to program Junos, and explain which tool is best for your particular network requirement.This book covers: The Junos management architectureAPIs for interacting with JunosLibraries for simplifying the interaction with JunosOn-device automation scripts to modify and extend Junos behaviorExamples of automating network provisioning, monitoring, and troubleshootingMechanisms for performing high-speed changes (SDN)

Unlock the secrets of the Terminal and discover how this powerful tool solves problems the Finder can't handle. With this handy guide, you'll learn commands for a variety of tasks, such as killing programs that refuse to quit, renaming a large batch of files in seconds, or running jobs in the background while you do other work.

Get started with an easy-to-understand overview of the Terminal and its partner, the shell. Then dive into commands neatly arranged into two dozen categories, including directory operations, file comparisons, and network connections. Each command includes a concise description of its purpose and features.Log into your Mac from remote locationsSearch and modify files in powerful waysSchedule jobs for particular days and timesLet several people use one Mac at the same timeCompress and uncompress files in a variety of formatsView and manipulate Mac OS X processesCombine multiple commands to perform complex operationsDownload and install additional commands from the Internet

The Cocoa frameworks are some of the most powerful frameworks for creating native desktop applications available on any platform today, and Apple gives them away, along with the Xcode development environment, for free However, for a first-time Mac developer, just firing up Xcode and starting to browse the documentation can be a daunting task. The Objective-C class reference documentation alone would fill thousands of printed pages, not to mention all the other tutorials and guides included with Xcode. Where do you start? Which classes are you going to need to use? How do you use Xcode and the rest of the tools?

This book answers these questions and more, helping you find your way through the jungle of classes, tools, and new concepts so that you can get started on the next great Mac OS X application today. Jack Nutting is your guide through this forest; he's lived here for years, and he'll show you which boulder to push, which vine to chop, and which stream to float across in order to make it through. You will learn not only how to use the components of this rich framework, but also which of them fit together, and why.

Jack Nutting 's approach, combining pragmatic problem-solving with a deep respect for the underlying design philosophies contained within Cocoa, stems from years of experience using these frameworks. He'll show you which parts of your application require you to jump in and code a solution, and which parts are best served by letting Cocoa take you where it wants you to go. The path over what looks like a mountain of components and APIs has never been more thoroughly prepared for your travels. With Jack's guidance, the steep learning curve becomes a pleasurable adventure. There is still much work for the uninitiated, but by the time you're done, you will be well on your way to becoming a Cocoa master. What you'll learn How to actually make your own Cocoa applicationsthis is much more than just a quick introduction to Cocoa Which classes, of the dozens included in Cocoa, are truly central to Cocoa development How to best use MVC architecture concepts in a Cocoa application How the various pieces of the Cocoa frameworks fit with each other and into the MVC architecture Which parts of Cocoa truly enable visual programming, letting you reap the benefits of proven, reusable code libraries that Apple gives you for free How to recognize recurring design patterns used throughout Cocoa, and put them to proper use in your own code How to approach Cocoa from different programming environments How to use the facilities provided in Snow Leopard to create software that distributes itself automatically among all available CPUs, improving the user experience for your users. Who this book is for

Anyone with basic understanding of object-oriented programming who wants to try out Mac OS X application programming, as well as iPhone developers who want to extend their knowledge of Cocoa touch to include the Mac-specific technologies included with Cocoa. Table of Contents Must Love CocoaHello, WorldLights, Camera... Actions (and Outlets, Too) GUI ComponentsUsing Table ViewsCocoa BindingsCore Data BasicsCore Data RelationshipsSearch and Retrieve Core Data with Criteria Windows and Menus and SheetsDocument-Based ApplicationsExceptions, Signals, Errors, and DebuggingDrawing in CocoaAdvanced Drawing TopicsWorking with FilesConcurrencyFuture Paths

Docker does for DevOps what Rails did for web development--it gives you a new set of superpowers. Gone are works on my machine woes and lengthy setup tasks, replaced instead by a simple, consistent, Docker-based development environment that will have your team up and running in seconds. Gain hands-on, real-world experience with a tool that's rapidly becoming fundamental to software development. Go from zero all the way to production as Docker transforms the massive leap of deploying your app in the cloud into a baby step. Docker makes life as a Ruby and Rails developer easier. It helps build, ship, and run your applications, solving major problems you face every day. It allows you to run applications at scale, adding new resources as needed. Docker provides a reliable, consistent environment that's guaranteed to work the same everywhere. Docker lets you do all things DevOps without needing a PhD in infrastructure and operations. Want to spin up a cluster to run your app? No problem. Scale it up or down at will? You bet. Start by running a Ruby script without having Ruby installed on the local machine. Then Dockerize a Rails application and run it using containers, including creating your own custom Docker images tailored for running Rails apps. Describe your app declaratively using Docker Compose, specifying the software dependencies along with everything needed to run the application. Then set up continuous integration, as well as your deployment pipeline and infrastructure. Along the way, find out the best practices for using Docker in development and production environments. This book gives you a solid foundation on using Docker and fitting it into your development workflow and deployment process. What You Need: All you need is a Windows, Mac OS X or Linux machine to do development on. This book guides you through the process of installing Docker. Some basic familiarity with Linux/Unix is recommended even if you're using a Windows machine

Now in full color, the 10th anniversary edition of this classic book takes you deep into the influences that underlie modern video games, and examines the elements they share with traditional games such as checkers. At the heart of his exploration, veteran game designer Raph Koster takes a close look at the concept of fun and why it's the most vital element in any game. Why do some games become boring quickly, while others remain fun for years? How do games serve as fundamental and powerful learning tools? Whether you're a game developer, dedicated gamer, or curious observer, this illustrated, fully updated edition helps you understand what drives this major cultural force, and inspires you to take it further. You'll discover that: Games play into our innate ability to seek patterns and solve puzzles Most successful games are built upon the same elements Slightly more females than males now play games Many games still teach primitive survival skills Fictional dressing for modern games is more developed than the conceptual elements Truly creative designers seldom use other games for inspiration Games are beginning to evolve beyond their prehistoric origins

What makes Windows refugees decide to get a Mac? Enthusiastic friends? The Apple Stores? Great-looking laptops? A "halo effect" from the popularity of iPhones and iPads? The absence of viruses and spyware? The freedom to run Windows on a Mac? In any case, there's never been a better time to switch to OS X - and there's never been a better, more authoritative book to help you do it. The important stuff you need to know: Transfer your stuff. Moving files from a PC to a Mac by cable, network, or disk is the easy part. But how do you extract your email, address book, calendar, Web bookmarks, buddy list, desktop pictures, and MP3 files? Now you'll know. Recreate your software suite. Many of the PC programs you've been using are Windows-only. Discover the Mac equivalents and learn how to move data to them. Learn Yosemite. Apple's latest operating system is faster, smarter, and more in tune with iPads and iPhones. If Yosemite has it, this book covers it. Get the expert view. Learn from Missing Manuals creator David Pogue - author of OS X Yosemite: The Missing Manual, the #1 bestselling Mac book on earth.

With Yosemite, Apple has unleashed the most innovative version of OS X yet--and once again, David Pogue brings his expertise and humor to the #1 bestselling Mac book. Mac OS X 10.10 includes more innovations from the iPad and adds a variety of new features throughout the operating system. This updated edition covers it all with something new on practically every page. Get the scoop on Yosemite's big-ticket changes Learn enhancements to existing applications, such as Safari and Mail Take advantage of shortcuts and undocumented tricks Use power user tips for networking, file sharing, and building your own services

Think your Mac is powerful now? This practical guide shows you how to get much more from your system by tapping into Unix, the robust operating system concealed beneath OS X's beautiful user interface. OS X puts more than a thousand Unix commands at your fingertips-for finding and managing files, remotely accessing your Mac from other computers, and using freely downloadable open source applications. If you're an experienced Mac user, this updated edition teaches you all the basic commands you need to get started with Unix. You'll soon learn how to gain real control over your system. Get your Mac to do exactly what you want, when you want Make changes to your Mac's filesystem and directories Use Unix's find, locate, and grep commands to locate files containing specific information Create unique "super commands" to perform tasks that you specify Run multiple Unix programs and processes at the same time Access remote servers and interact with remote filesystems Install the X Window system and learn the best X11 applications Take advantage of command-line features that let you shorten repetitive tasks

What do you get when you cross a Mac with an iPad? OS X 10.9 Mavericks. Its 200 new features include Mac versions of iPad goodies like Maps, iBooks, and iTunes Radio--but not a single page of instructions. Fortunately, David Pogue is back, with the expertise and humor that have made this the #1 bestselling Mac book for over 11 years straight.

The important stuff you need to know: Big-ticket changes. Finder tabs. Finder tags. App Nap. iCloud Keychain. iTunes Radio. Maps. iBooks. Automatic app updating. If Apple wrote it, this book covers it.Nips and tucks. This book demystifies the hundreds of smaller enhancements, too, in all 50 programs that come with the Mac: Safari, Mail, Calendar, Notification Center, Messages, Time Machine...Shortcuts. Meet the tippiest, trickiest Mac book ever written. Undocumented surprises await on every page.Power users. Security, networking, build-your-own Services, file sharing with Windows, even Mac OS X's Unix chassis--this one witty, expert guide makes it all crystal clear.

There's something new on practically every page of this edition, and David Pogue brings his celebrated wit and expertise to every one of them.

O'Reilly's Learning GNU Emacs covers the most popular and widespread of the Emacs family of editors. The GNU Emacs Pocket Reference is a companion volume to Learning GNU Emacs. This small book, covering Emacs version 20, is a handy reference guide to the basic elements of this powerful editor, presenting the Emacs commands in an easy-to-use tabular format.

Eckert's LINUX+ and LPIC-1 GUIDE TO LINUX CERTIFICATION, 5th Edition, empowers you with the knowledge and skills you need to succeed on CompTIA's Linux (R)+ (XKO-004) certification exam and the Linux Professional Institute LPIC-1 (101-500 and 102-500) certification exams, as well as in your network administration career. The book covers the latest Linux (R) distributions, virtualization, containerization and storage technologies. Comprehensive coverage also addresses key job-related networking and security services, including FTP, NFS, Samba, Apache, DNS, DHCP, NTP, Squid, Postfix, SSH, VNC, Spice, RDP, GPG, PostgreSQL and iptables/firewalld. Hands-on projects give you practice using both modern Linux (R) distributions (Fedora (TM) 28 and Ubuntu (R) Server 18.04) and industry's legacy Linux distributions. And with MindTap's live virtual machine labs, you can explore various solutions in a safe, sandbox environment using real Cisco hardware and virtualized Linux operating systems.