“As an author, editor, and publisher, I never paid much attention to the competition–except in a few cases. This is one of those cases. The UNIX System Administration Handbook is one of the few books we ever measured ourselves against.”    –From the Foreword by Tim O’Reilly, founder of O’Reilly Media   “This book is fun and functional as a desktop reference. If you use UNIX and Linux systems, you need this book in your short-reach library. It covers a bit of the systems’ history but doesn’t bloviate. It’s just straightfoward information delivered in colorful and memorable fashion.”   –Jason A. Nunnelley“This is a comprehensive guide to the care and feeding of UNIX and Linux systems. The authors present the facts along with seasoned advice and real-world examples. Their perspective on the variations among systems is valuable for anyone who runs a heterogeneous computing facility.”   –Pat Parseghian The twentieth anniversary edition of the world’s best-selling UNIX system administration book has been made even better by adding coverage of the leading Linux distributions: Ubuntu, openSUSE, and RHEL.     This book approaches system administration in a practical way and is an invaluable reference for both new administrators and experienced professionals. It details best practices for every facet of system administration, including storage management, network design and administration, email, web hosting, scripting, software configuration management, performance analysis, Windows interoperability, virtualization, DNS, security, management of IT service organizations, and much more. UNIX® and Linux® System Administration Handbook, Fourth Edition, reflects the current versions of these operating systems: Ubuntu® LinuxopenSUSE® LinuxRed Hat® Enterprise Linux®Oracle America® Solaris™ (formerly Sun Solaris)HP HP-UX®IBM AIX®

Discover all the security risks and exploits that can threaten iOS-based mobile devicesiOS is Apple's mobile operating system for the iPhone and iPad. With the introduction of iOS5, many security issues have come to light. This book explains and discusses them all. The award-winning author team, experts in Mac and iOS security, examines the vulnerabilities and the internals of iOS to show how attacks can be mitigated. The book explains how the operating system works, its overall security architecture, and the security risks associated with it, as well as exploits, rootkits, and other payloads developed for it. Covers iOS security architecture, vulnerability hunting, exploit writing, and how iOS jailbreaks workExplores iOS enterprise and encryption, code signing and memory protection, sandboxing, iPhone fuzzing, exploitation, ROP payloads, and baseband attacksAlso examines kernel debugging and exploitation Companion website includes source code and tools to facilitate your effortsiOS Hacker's Handbook arms you with the tools needed to identify, understand, and foil iOS attacks.

Note: The most recent printings of this title incorporate corrections to errors found in the earlier printings. This Self-Paced Training Kit is designed to help maximize your performance on 70-680, the required exam for the Microsoft® Certified Technology Specialist (MCTS): Windows 7, Configuration certification.This 2-in-1 kit includes the official Microsoft study guide, plus practice tests on CD to help you assess your skills. It comes packed with the tools and features exam candidates want most—including in-depth, self-paced training based on final exam content; rigorous, objective-by-objective review; exam tips from expert, exam-certified authors; and customizable testing options. It also provides real-world scenarios, case study examples, and troubleshooting labs to give you the skills and expertise you can use on the job.Work at your own pace through the lessons and lab exercises. This official study guide covers installing, upgrading, and migrating to Windows 7; configuring network connectivity, applications, and devices; implementing backup and recovery; configuring User Account Control (UAC), mobility options, and new features such as DirectAccess and BranchCache; and managing system updates.Then assess yourself using the 200 practice questions on CD, featuring multiple customizable testing options to meet your specific needs. Choose timed or untimed testing mode, generate random tests, or focus on discrete objectives. You get detailed explanations for right and wrong answers—including pointers back to the book for further study. You also get an exam discount voucher—making this kit an exceptional value and a great career investment. A Note Regarding the CD or DVD: The practice test materials are available as a download along with your ebook version of the kit, and will be located in your account. Please direct any questions or concerns to booktech@oreilly.com.

Introduction to the Command Line is a visual guide that teaches the most important Unix and Linux shell commands in a simple and straight forward manner. Command line programs covered in this book are demonstrated with typical usage to aid in the learning process and help you master the command line quickly and easily. Covers popular Unix, Linux, and BSD systems.

The bestselling Mac guide, updated for the latest Mac OS X and now in full color!Mac OS X Lion represents a new era in the Mac operating system. This friendly guide is fully updated for the latest Mac OS X and provides everything new Mac users and users upgrading to Mac OS X Lion need to know. A bestseller in previous editions, Mac OS X Lion For Dummies covers all the cool stuff and prepares you for the quirks. So whether it's your first Mac or just an OS upgrade, you'll learn to tame your Lion with the expert advice of Bob "Dr. Mac" LeVitus and Dummies.Covers using the Finder, customizing Lion, adding widgets to the Dashboard, organizing and managing files and folders, searching with Spotlight, and working with SpacesExplores browsing the web with Safari, using Apple Mail and iCal, connecting a printer, performing backups with Time Machine, troubleshooting, and setting up a networkWalks readers through the new features of Mac OS X Lion, including FaceTime, Photo Booth, Launchpad, Mission Control, Full-screen apps, and moreGets you up and running with iTunes, downloading fun apps from the Mac App Store, and staying entertained with videos, photos, and other multimediaYou'll make your Lion roar with the friendly advice in Mac OS X Lion For Dummies.

Ready to move to the Mac? This incomparable guide helps 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 or inefficient permissions. Just a beautiful machine with a thoroughly reliable system. Whether you're using Windows XP or Windows 7, we've got you covered.Transfer your stuff. Moving files from a PC to a Mac is the easy part. This guide gets you through the tricky things: extracting your email, address book, calendar, Web bookmarks, buddy list, desktop pictures, and MP3 files. Re-create your software suite. Big-name programs from Microsoft, Adobe, and others are available in both Mac and Windows versions. But hundreds of other programs are Windows-only. Learn the Macintosh equivalents and how to move data to them. Learn Mac OS X Lion. Once you've moved into the Macintosh mansion, it's time to learn your way around. You're in good hands with the author of Mac OS X: The Missing Manual, the #1 bestselling guide to Mac OS X.

In Windows, there's a control panel, dialog box, console, or wizard to manage every component of a system. There are thousands of them—so many that it can be nearly impossible to keep track of all the locations and settings one needs to administer Windows effectively. PowerShell provides administrators with a single, unified command line from which they can control and automate every aspect of Windows.Learn Windows PowerShell in a Month of Lunches is an innovative tutorial designed for busy administrators. Author Don Jones has taught thousands of administrators to use PowerShell, and now he brings his years of training techniques to a concise, easy-to-follow book. Just set aside one hour a day—lunchtime would be perfect—for an entire month, and readers will be automating administrative tasks faster than they ever thought possible.

The perfect plain-English guide to the much-anticipated release of Windows 7Windows For Dummies is the all-time bestselling guide to the Windows operating system. Windows 7 For Dummies answers all your questions about the interface adjustments and all the new tools in Windows 7.Whether you're new to computers or just eager to start using the newest version of Windows, expert author Andy Rathbone will walk you step by step through the most common Windows 7 tasks, including managing files, applications, media, and Internet access. If you've never used Windows before, it shows you the things most books assume you already know, like how to navigate the interface, customize the desktop, and work with the file system. Then it helps you get comfortable using all aspects of Windows 7.Nearly ninety percent of the world's PCs use the Windows operating systemCovers basic management of applications, files, and data; creating and printing documents; setting up an Internet connection and e-mail account; and online securityExplores using Windows to edit and manage audio, video, and photo files, and how to create CDs, DVDs, and playlists with Media CenterHelps you tweak and customize Windows 7 to operate your way and set up user accounts, build a home network, and maintain your PCProvides troubleshooting advice, helps you find missing files and use the Help system, and explains common error messagesWindows 7 For Dummies will have you up and running on the newest version of Windows quickly and easily.

Python Essential Reference is the definitive reference guide to the Python programming language — the one authoritative handbook that reliably untangles and explains both the core Python language and the most essential parts of the Python library.Designed for the professional programmer, the book is concise, to the point, and highly accessible. It also includes detailed information on the Python library and many advanced subjects that is not available in either the official Python documentation or any other single reference source.   Thoroughly updated to reflect the significant new programming language features and library modules that have been introduced in Python 2.6 and Python 3, the fourth edition of Python Essential Reference is the definitive guide for programmers who need to modernize existing Python code or who are planning an eventual migration to Python 3. Programmers starting a new Python project will find detailed coverage of contemporary Python programming idioms.   This fourth edition of Python Essential Reference features numerous improvements, additions, and updates: Coverage of new language features, libraries, and modulesPractical coverage of Python's more advanced features including generators, coroutines, closures, metaclasses, and decoratorsExpanded coverage of library modules related to concurrent programming including threads, subprocesses, and the new multiprocessing moduleUp-to-the-minute coverage of how to use Python 2.6’s forward compatibility mode to evaluate code for Python 3 compatibilityImproved organization for even faster answers and better usabilityUpdates to reflect modern Python programming style and idioms Updated and improved example codeDeep coverage of low-level system and networking library modules — including options not covered in the standard documentation  

Mike Meyers' Guide to Supporting Windows 7 for CompTIA A+ Certification, Exams 220-701&220-702 Get the latest information on the new Windows 7 topics and questions added to CompTIA A+ exams 220-701 and 220-702. A must-have companion to CompTIA A+ All-in-One Exam Guide, Seventh Edition and Mike Meyers' CompTIA A+ Guide to Managing and Troubleshooting PCs, Third Edition, this book focuses on the new exam objectives. Mike Meyers' Guide to Supporting Windows 7 for CompTIA A+ Certification provides learning objectives at the beginning of each chapter, exam tips, practice exam questions, and in-depth explanations. Written by the leading authority on CompTIA A+ certification and training, this essential resource provides the up-to-date coverage you need to pass the exams with ease. COVERS ALL NEW WINDOWS 7 EXAM TOPICS, INCLUDING: Windows 7 interface features Installing Windows 7 Boot issues with Windows 7 User Account Control--from Windows Vista to Windows 7 IPv6 Windows 7 networking Windows 7 utilities CD-ROM FEATURES: Practice exams for 701&702 Video introduction to Windows 7 and CompTIA A+ Mike's favorite PC tools and utilities PDF copy of the book Mike Meyers, CompTIA A+, CompTIA Network+, CompTIA Security+, MCP, is the industry's leading authority on CompTIA A+ certification and the bestselling author of seven editions of CompTIA A+ All-in-One Exam Guide. He is the president of PC and network repair seminars for thousands of organizations throughout the world, and a member of CompTIA.