But it can be even trickier to use than either Unix or Linux, and harder still to master.Absolute FreeBSD, 2nd Edition is your complete guide to FreeBSD, written by FreeBSD committer Michael W. Lucas. Lucas considers this completely revised and rewritten second edition of his landmark work to be his best work ever; a true product of his love for FreeBSD and the support of the FreeBSD community. Absolute FreeBSD, 2nd Edition covers installation, networking, security, network services, system performance, kernel tweaking, filesystems, SMP, upgrading, crash debugging, and much more, including coverage of how to:Use advanced security features like packet filtering, virtual machines, and host-based intrusion detection Build custom live FreeBSD CDs and bootable flash Manage network services and filesystems Use DNS and set up email, IMAP, web, and FTP services for both servers and clients Monitor your system with performance-testing and troubleshooting tools Run diskless systems Manage schedulers, remap shared libraries, and optimize your system for your hardware and your workload Build custom network appliances with embedded FreeBSD Implement redundant disks, even without special hardware Integrate FreeBSD-specific SNMP into your network management system. Whether you're just getting started with FreeBSD or you've been using it for years, you'll find this book to be the definitive guide to FreeBSD that you've been waiting for.

    Numerous examples are provided to reinforce the concepts and relevant case studies illustrate the concepts and mechanisms described.

    Simultaneously becoming more user friendly and more powerful as a back-end system, Linux has achieved new plateaus: the newer filesystems have solidified, new commands and tools have appeared and become standard, and the desktop--including new desktop environments--have proved to be viable, stable, and readily accessible to even those who don't consider themselves computer gurus. Whether you're using Linux for personal software projects, for a small office or home office (often termed the SOHO environment), to provide services to a small group of colleagues, or to administer a site responsible for millions of email and web connections each day, you need quick access to information on a wide range of tools. This book covers all aspects of administering and making effective use of Linux systems. Among its topics are booting, package management, and revision control. But foremost in Linux in a Nutshell are the utilities and commands that make Linux one of the most powerful and flexible systems available.Now in its fifth edition, Linux in a Nutshell brings users up-to-date with the current state of Linux. Considered by many to be the most complete and authoritative command reference for Linux available, the book covers all substantial user, programming, administration, and networking commands for the most common Linux distributions.Comprehensive but concise, the fifth edition has been updated to cover new features of major Linux distributions. Configuration information for the rapidly growing commercial network services and community update services is one of the subjects covered for the first time.But that's just the beginning. The book covers editors, shells, and LILO and GRUB boot options. There's also coverage of Apache, Samba, Postfix, sendmail, CVS, Subversion, Emacs, vi, sed, gawk, and much more. Everything that system administrators, developers, and power users need to know about Linux is referenced here, and they will turn to this book again and again.

    While there have been attempts to establish one standard or another as the default, there is no common agreement. So beware people telling you there is one right way, they are assuming too much. As a general rule though, netiquette involves the same principles as plain old etiquette -- basic courtesy, respect and ethics. Treat people the way you would want to be treated yourself. By following the principles outlined below, the recipient of your email will be more likely to read and act, if not be favorably impressed by your message:Subject line to summarise the message. Make the Subject line summarise the body of the e-mail. Ask yourself, 'will the recipient(s) know what this e-mail is about'. For example, Instead of Subject: Exam, say Subject: Location of 1508INT Exam, 23 July 2011.Don't assume the recipient knows the background. Include enough contextual information at the beginning of the e-mail for the recipient to know what the matter is about. If in doubt, put background information in. For example, don't say can I have an extension for my assignment?, instead say I refer to the CIT3622 assignment 1 that I handed in late. I was ill and have a doctor's certificate. May I ask for an extension on the basis that I was too ill to do it on time?Keep it concise. Keep messages brief and to the point, but not so brief that it causes the problem outlined in the previous point. This includes deleting any irrelevant text when an email has been back and forth several times. No-one wants to scroll down through pages of text in order to reach the message they want to read. If the sense of the email will be lost by deleting that text, however, leave it in.Reply within 24 hours. Try to reply within 24 hours, less if possible. In fact, get in the habit of replying immediately -- it is the polite thing to do, and the recipient will appreciate a prompt reply. It also makes you look efficient. The longer you leave it to reply, the more likely you will forget or have too big a log-jam of unanswered email.Allow time for a reply. E-mail messages are not usually required to be answered immediately, though it is good practice if you do. Before sending a reminder, allow some time for a response, some times even a few days. Not everyone is online 24 hours a day.Use the BCC field when sending bulk email. If you're sending email to a whole list of people, put their email addresses in the BCC field. That way, the privacy of the recipient is respected, and spammers cannot harvest the email addresses for their dastardly purposes.

    Work at your own pace through a system of lessons, hands-on exercises, troubleshooting labs, and review questions.The Readiness Review Suite on CD, featuring advanced technology from MeasureUp, provides 425 challenging questions for in-depth self-assessment and practice. You can choose timed or untimed testing mode, generate random tests, or focus on specific objectives. You get detailed explanations for right and wrong answers--including a customized learning path that describes how and where to focus your studies.Maximize your performance on the exam by learning how to: Perform an installation or upgrade, including remote deploymentConfigure and customize the desktop environmentAdminister disks, device drivers, printers, file systems, and other resourcesManage TCP/IP networking and support remote and mobile usersMonitor, troubleshoot, and tune system performanceNEW!--Administer security settings and services, including the advances in Windows XP Service Pack 2Readiness Review Suite on CD Powered by MeasureUpYour kit includes: NEW--Fully reengineered self-paced study guide with expert exam tips. NEW--Readiness Review Suite featuring 425 questions and multiple testing options. NEW--Case scenarios and troubleshooting labs for real-world expertise. NEW--120-day evaluation version of Windows XP Professional software with Windows XP Service Pack 2.NEW--eBook in PDF format. NEW--Microsoft Encyclopedia of Security eBook. NEW--Microsoft Encyclopedia of Networking, Second Edition eBook.For customers who purchase an ebook version of this title, instructions for downloading the CD files can be found in the ebook.

    The most common operation done with sed is substitution, replacing one block of text with another. awk is a complete programming language. Unlike many conventional languages, awk is "data driven" -- you specify what kind of data you are interested in and the operations to be performed when that data is found. awk does many things for you, including automatically opening and closing data files, reading records, breaking the records up into fields, and counting the records. While awk provides the features of most conventional programming languages, it also includes some unconventional features, such as extended regular expression matching and associative arrays. sed & awk describes both programs in detail and includes a chapter of example sed and awk scripts. This edition covers features of sed and awk that are mandated by the POSIX standard. This most notably affects awk, where POSIX standardized a new variable, CONVFMT, and new functions, toupper() and tolower(). The CONVFMT variable specifies the conversion format to use when converting numbers to strings (awk used to use OFMT for this purpose). The toupper() and tolower() functions each take a (presumably mixed case) string argument and return a new version of the string with all letters translated to the corresponding case. In addition, this edition covers GNU sed, newly available since the first edition. It also updates the first edition coverage of Bell Labs nawk and GNU awk (gawk), covers mawk, an additional freely available implementation of awk, and briefly discusses three commercial versions of awk, MKS awk, Thompson Automation awk (tawk), and Videosoft (VSAwk).

    Not only does this Bible give you a quick refresher on the structure of open-source Linux software, it also shows you how to bypass the hefty graphical user interface on Linux systems and start interacting the fast and efficient way?with command lines and automated scripts. You'll learn how to manage files on the filesystem, start and stop programs, use databases, even do Web programming?without a GUI?with this one-stop resource.

    With the new tablet, I absolutely love its many standard features and capabilities, but have found there is so much more that can be done with this amazing gadget. I’ve learned a lot of great things you can do with a Kindle Fire HD and want to help others get more out of their Kindle Fire HDX and HD devices. I've developed a comprehensive guide book to help users along on their device, including tips and tricks to really unlock and unleash the possibilities with the tablet. Here’s just some of the great info you’ll find in this User’s Guide Book: - Getting to know the various settings of your Kindle Fire HDX or HD - Browsing your Kindle and carousel - How to store your favorite content items on the device - Setting up security options to safeguard your device - Setting up your e-mail, contacts and calendar info - Setting up and using wireless networks - How to print from your Kindle Fire HD - How to install the Dolphin Browser with Adobe Flash - How to install the Google Chrome browser on your tablet - Pairing your Kindle Fire HD with a compatible Bluetooth phone or computer - How to set-up FreeTime for your kids to use your Kindle with restrictions - How to listen to the radio on your tablet - How to use your tablet to make phone calls for free! - How to download YouTube videos to your Kindle Fire HD - How to take photos and videos with your Kindle Fire HD camera - How to sideload apps on your Kindle Fire HD - Some of the best apps you can get for your tablet - Suggested apps to take your tablet to the next level! You’ll learn all of the above and more in this book which features color screenshots straight from the Kindle and step-by-step instructions on the processes involved in unleashing more powerful features for your Kindle Fire HD! There's also helpful links throughout the guide to take you right to the apps and websites being discussed. In all, this is a must-have ebook to get for any Kindle Fire HD user who wants to take their device to the next level! Note: Many of the tips and how-to's covered in this guide will also apply to the previous generation of the Kindle Fire HD, released in 2012. Please note this book is for owners of the American version of the Kindle Fire HDX & Kindle Fire HD tablets sold as of October 2013 in the United States.

    As you d expect, there s accurate, clearly written coverage of every exam objective (now including Service Pack 1): installation and configuration; user, group, and computer accounts; filesystems and backup/recovery; hardware, disk storage, and printers; Update Services and licensing; monitoring, and more. The content s been extensively revamped and more effectively focused on the exam s objectives. There s also a large Prepare for the Test section packed with questions, answers, testing skills, and suggested practices. You ll find more case studies, more troubleshooting scenarios, electronic practice testing in practically any form your heart desires, and (if you don t have Windows Server handy) a 120-day evaluation version. There s even a 15% discount coupon for your exam -- making this package an even more compelling proposition. Bill Camarda, from the June 2006 href="http://www.barnesandnoble.com/newslet... Only

    Get this Amazing #1 Amazon Top Release - Great Deal! You can read on your PC, Mac, smartphone, tablet or Kindle device. This book will teach you how you can protect yourself from most common hacking attacks -- by knowing how hacking actually works! After all, in order to prevent your system from being compromised, you need to stay a step ahead of any criminal hacker. You can do that by learning how to hack and how to do a counter-hack. Within this book are techniques and tools that are used by both criminal and ethical hackers – all the things that you will find here will show you how information security can be compromised and how you can identify an attack in a system that you are trying to protect. At the same time, you will also learn how you can minimise any damage in your system or stop an ongoing attack. Read this book for FREE on Kindle Unlimited - Download NOW! With Hacking: Computer Hacking Beginners Guide…, you'll learn everything you need to know to enter the secretive world of computer hacking. It provides a complete overview of hacking, cracking, and their effect on the world. You'll learn about the prerequisites for hacking, the various types of hackers, and the many kinds of hacking attacks: Active Attacks Masquerade Attacks Replay Attacks Modification of Messages Spoofing Techniques WiFi Hacking Hacking Tools Your First Hack Passive Attacks Download Hacking: Computer Hacking Beginners Guide How to Hack Wireless Network, Basic Security and Penetration Testing, Kali Linux, Your First Hack right away - This Amazing New Edition puts a wealth of knowledge at your disposal. You'll learn how to hack an email password, spoofing techniques, WiFi hacking, and tips for ethical hacking. You'll even learn how to make your first hack. Today For Only $3.99 $5.99 $0.99. Scroll Up And Start Enjoying This Amazing Deal Instantly

    Like earlier editions of the book, physical concepts are highlighted while also giving necessary attention to math-ematical techniques. Both theory and modeling are developed from simple beginnings so that they can be readily extended to new and complex situations. Beginning in Ch. 3, students are introduced to new concepts critical to analyzing power systems, including coverage of both balanced and unbalanced operating conditions. The authors incorporate new tools and material to aid students with design issues and reflect recent trends in the field. Each book now contains a CD with Power World software. This package is commonly used in industry and will enable students to analyze and simulate power systems. The authors use the software to extend, rather than replace, the fully worked examples provided in previous editions. In the new edition, each Power World Simulator example includes a fully worked hand solution of the problem along with a Power World Simulator case (except when the problem size makes it impractical). The new edition also contains updated case studies on recent trends in the Power Systems field, including coverage of deregulation, increased power demand, economics, and alternative sources of energy. These case studies are derived from real life situations.

    They have also sprouted new and wondrous capabilities at a dizzying pace. This 11th Edition of the all-time bestselling PC guide has been polished and honed to deliver everything you need to know about your twenty-first-century PC -- from what plugs into what to adjusting your monitor to burning DVDs, and much more.Whether you want to go online, install a firewall, live the digital life, or finally get a handle on the whole computer software concept, this fun, plain-English handbook is here to answer all your questions PC questions. You'll find out why Windows Vista is the way to go and how to use it to get everywhere else. And, you'll pick up Web and email tricks and learn about all the new levels of PC security. Discover how to: Set up your PC Use Vista menus Store your stuff on Memory Cards Record live TV Download digital photos Connect to a wireless network Explore the Internet safely Print perfect documents, photos, and more Use your PC as the new hub of your digital worldComplete with helpful hints on how to avoid beginner mistakes, a list of extras and accessories you may want for your PC, and insider tips from a PC guru. PCs for Dummies, 11th Edition is the one PC accessory you can't do without.

    This book covers topics which include the secrets of how the pros retouch portraits; how to color correct any photo without breaking a sweat (you'll be amazed at how they do it!); how to unlock the power of Photoshop CS' new features for digital photo pros; and others.

    You'll get in-depth coverage of the C language and function libraries as well as all the newest C features, including restricted pointers, inline functions, variable-length arrays, and complex math. This jam-packed resource includes hundreds of examples and sample applications.

    In the 1940s, the eminent British botanist John Heslop Harrison proposed a controversial theory: Species of plants on the islands off the west coast of Scotland, he said, had survived the last Ice Age. His premise flew in the face of evidence that the last advance of the ice sheets extended well south of mainland Scotland, but he said he had proof—the plants and grasses found on the Isle of Rum — that would make his name in the scientific world. Harrison didn't anticipate, however, the tenacious John Raven, an amateur botanist who boldly questioned whether these grasses were truly indigenous to the area, or whether they had been transported there and planted. What seems at first a minor infringement of academic honesty soon becomes an enthralling tale of rival scientists and fraudulent science, a skillful whodunit that, in the hands of the talented Sabbagh, joins the ranks of the best narrative nonfiction.