It has saved me hours in troubleshooting complicated operations problems." -Trotter Cashion, cofounder, Mashion DevOps can help developers, QAs, and admins work together to solve Linux server problems far more rapidly, significantly improving IT performance, availability, and efficiency. To gain these benefits, however, team members need common troubleshooting skills and practices. In DevOps Troubleshooting: Linux Server Best Practices , award-winning Linux expert Kyle Rankin brings together all the standardized, repeatable techniques your team needs to stop finger-pointing, collaborate effectively, and quickly solve virtually any Linux server problem. Rankin walks you through using DevOps techniques to troubleshoot everything from boot failures and corrupt disks to lost email and downed websites. You'll master indispensable skills for diagnosing high-load systems and network problems in production environments. Rankin shows how to Master DevOps' approach to troubleshooting and proven Linux server problem-solving principles Diagnose slow servers and applications by identifying CPU, RAM, and Disk I/O bottlenecks Understand healthy boots, so you can identify failure points and fix them Solve full or corrupt disk issues that prevent disk writes Track down the sources of network problems Troubleshoot DNS, email, and other network services Isolate and diagnose Apache and Nginx Web server failures and slowdowns Solve problems with MySQL and Postgres database servers and queries Identify hardware failures-even notoriously elusive intermittent failures

    In those heady early days of computing, Britannia very much ruled the digital waves.Electronic Dreams looks back at how Britain embraced the home computer, and at the people who drove the boom: entrepreneurs such as Clive Sinclair and Alan Sugar seeking new markets; politicians proclaiming economic miracles; bedroom programmers with an unhealthy fascination with technology; and millions of everyday folk who bought into the electronic dream and let the computer into their lives. It is a history of home computers such as the Commodore VIC20, BBC Micro, and ZX Spectrum; classic computer games like Manic Miner and Elite; the early information networks that first put the home online; and the transformation of the computer into an everyday object in the British home.Based on interviews with key individuals, archive sources, and study of vintage hardware and software, and with a particular focus on the computer's place in social history, Electronic Dreams is a nostalgic look at how a depressed 1980s Britain got over its fear of microchips and embraced the computer as a “passport to the future.”

    Already used by people and companies around the world, many forecast that Bitcoin could radically transform the global economy. The value of a bitcoin has soared from less than a dollar in 2011 to well over $1000 in 2013, with many spikes and crashes along the way. The rise in value has brought Bitcoin into the public eye, but the cryptocurrency still confuses many people. Bitcoin for the Befuddled covers everything you need to know about Bitcoin—what it is, how it works, and how to acquire, store, and use bitcoins safely and securely. You'll also learn about Bitcoin's history, its complex cryptography, and its potential impact on trade and commerce. The book includes a humorous, full-color comic explaining Bitcoin concepts, plus a glossary of terms for easy reference.

    Siracusa's overview, wrap-up, and critique of everything new in OS X 10.10 Yosemite.

    

    Starting with Alexander Graham Bell's revolutionary "harmonic telegraph," by the middle of the twentieth century the phone system had grown into something extraordinary, a web of cutting-edge switching machines and human operators that linked together millions of people like never before. But the network had a billion-dollar flaw, and once people discovered it, things would never be the same.Exploding the Phone tells this story in full for the first time. It traces the birth of long-distance communication and the telephone, the rise of AT&T's monopoly, the creation of the sophisticated machines that made it all work, and the discovery of Ma Bell's Achilles' heel. Phil Lapsley expertly weaves together the clandestine underground of "phone phreaks" who turned the network into their electronic playground, the mobsters who exploited its flaws to avoid the feds, the explosion of telephone hacking in the counterculture, and the war between the phreaks, the phone company, and the FBI.The product of extensive original research, Exploding the Phone is a ground-breaking, captivating book.

    It is a humorous book--pure entertainment--that maintains that UNIX is a computer virus with a user interface. It features letters from the thousands posted on the Internet's "UNIX-Haters" mailing list. It is not a computer handbook, tutorial, or reference. It is a self-help book that will let readers know they are not alone.

    We find a smart, funny bisexual torn between the pure, abstract world of programming and her involvement in San Francisco's city-wide registration system for AIDS patients.

    They are built with the objective of providing assessment, review, and practice to help ensure you are fully prepared for your certification exam. Master Cisco CCENT/CCNA ICND1 100-105 exam topics Assess your knowledge with chapter-opening quizzes Review key concepts with exam preparation tasks This is the eBook edition of the CCENT/CCNA ICND1 100-105 Official Cert Guide. This eBook does not include the companion CD-ROM with practice exam that comes with the print edition.   CCENT/CCNA ICND1 100-105 Official Cert Guide presents you with an organized test-preparation routine through the use of proven series elements and techniques. “Do I Know This Already?” quizzes open each chapter and enable you to decide how much time you need to spend on each section. Exam topic lists make referencing easy. Chapter-ending Exam Preparation Tasks help you drill on key concepts you must know thoroughly.   CCENT/CCNA ICND1 100-105 Official Cert Guide from Cisco Press enables you to succeed on the exam the first time and is the only self-study resource approved by Cisco. Best-selling author and expert instructor Wendell Odom shares preparation hints and test-taking tips, helping you identify areas of weakness and improve both your conceptual knowledge and hands-on skills.   This complete study package includes   ·         A test-preparation routine proven to help you pass the exams ·         Do I Know This Already? quizzes, which enable you to decide how much time you need to spend on each section ·         Chapter-ending and part-ending exercises, which help you drill on key concepts you must know thoroughly ·         Troubleshooting sections, which help you master the complex scenarios you will face on the exam ·         A free copy of the CCENT ICND1 100-105 Network Simulator Lite software, complete with meaningful lab exercises that help you hone your hands-on skills with the command-line interface for routers and switches ·         Links to a series of hands-on config labs developed by the author ·         Online, interactive practice exercises that help you hone your knowledge ·         More than 90 minutes of video mentoring from the author ·         A final preparation chapter, which guides you through tools and resources to help you craft your review and test-taking strategies ·         Study plan suggestions and templates to help you organize and optimize your study time   Well regarded for its level of detail, study plans, assessment features, challenging review questions and exercises, video instruction, and hands-on labs, this official study guide helps you master the concepts and techniques that ensure your exam success.   This official study guide helps you master all the topics on the CCENT/CCNA ICND1 exam, including ·         Networking fundamentals ·         Implementing basic Ethernet LANs ·         Ethernet LANs: design, VLANs, and troubleshooting ·         IPv4 addressing and subnetting ·         Implementing IPv4 ·         IPv4 design and troubleshooting ...

    Now he offers a framework for envisioning the twenty-first century--an age in which the marriage of human sensitivity and artificial intelligence fundamentally alters and improves the way we live. Kurzweil's prophetic blueprint for the future takes us through the advances that inexorably result in computers exceeding the memory capacity and computational ability of the human brain by the year 2020 (with human-level capabilities not far behind); in relationships with automated personalities who will be our teachers, companions, and lovers; and in information fed straight into our brains along direct neural pathways. Optimistic and challenging, thought-provoking and engaging, The Age of Spiritual Machines is the ultimate guide on our road into the next century.

    We were halfway in when the Japanese machine guns got their range. Bullets slapped the water and whined as they ricocheted off the barge. Some of us ducked; some of us fell to the floor; and all of us prayed.” Here, in heart-stopping human detail, are twenty-one personal accounts told by the men themselves. They are the stories of men who lived in hell and lived to tell of it. There is the story of Sgt. Albert Schmid who was awarded the Navy Cross for his single-handed destruction of a flanking attack while on Guadalcanal. The account of Private Nicolli who was literally blown into the air like a matchstick and then, with a piece of shrapnel in his chest, managed to help a wounded comrade to the rear. “The luckiest man in the Solomons,” Sgt. Koziar, tells of how he had his tonsils removed with the assistance of a Japanese sniper’s bullet. These are just three of the twenty-one fascinating stories that were told to Gerold Frank and James Horan just months after these marines had returned from active duty to recover from the conflict in the Pacific. The valor of these marines is astounding, as twenty-one-year-old Corporal Conroy states in the book, “I don’t suppose I shall ever be able to sum up all the bravery, the guts, the genuine, honest courage displayed by the boys out in Guadalcanal. They were afraid, and yet they took it. They had what it takes . . .” The battles of Gavutu-Tanambogo, Tulagi, Tenaru, Matanikau and Guadalcanal are all covered through these accounts which take the reader right to the epicenter of the Pacific conflict. “telling of living conditions on the beaches and in the jungles where they fought, offering an insider’s view of foxholes, food, snipers, mosquitos, boondocks, shrapnel, their injuries, and their pain.” Great Stories of World War II Gerold Frank and James Horan were professional authors who wrote down the stories of these marines shortly after they had returned from active duty. The War in the South Pacific was first published in 1943 as Out in the Boondocks. Frank went on to become a prominent ghostwriter and passed away in 1998. Horan, author of more than forty books, died in 1981.

     Do you want to turn your passion into passive income streams? Yes, you can get paid and do, teach what you love! Do you want to build an online teaching business with little to no investment up front? Do you want to become an entrepreneur? Do you want to work from home? If you’ve answered “yes” to even one of these questions then reading this eBook may turn out to be the best decision you’ve made this year!The ultimate purpose of this training (eBook, PDF files, 3 in-depth video sessions) is to teach you how to create products for your online teaching in a form of video courses. Howdy,My name is Vladimir Raykov.I’m a best-selling online instructor teaching over 12000 students and 20 online courses. I’m also the creator of STEP-BY-STEP TO YOUR FIRST 1000 STUDENTS program. During the last year, I’ve been gathering the best techniques for creating an online course and I’ve put them into this free training that is intended especially for beginners. I will completely reveal the exact 3-Step System for producing high-quality courses that I used to reach 5 figures for my online teaching business, doing it part-time and without spending money on advertising.HERE IS JUST A FRACTION OF WHAT YOU WILL LEARN FROM MY EBOOK AND FREE VIDEO TRAINING• Top 7 reasons why you should create an online course that generates income.• Top 7 (costly) mistakes beginner online instructors make and how to avoid them.• The 3-Step System for producing online courses with the velocity of light.• The top 4 mega-niches which are responsible for over 80% of the revenue generated by online instructors.• How to structure and organize your course. More specifically, how to make an outline for your course and the most effective internal structure of ALL your lectures.• All the tools (software) you will need to create products for your online teaching business of an utmost quality.• 6 Steps of a lecture creation.• The exact technical specifications for your video lectures.• The microphone I use to record crystal clear audio files.• How to get a professionally designed thumbnail for your course for free.• How to write a winning title for your course – basic copywriting skills part 1.• How to write a winning description for your course – basic copywriting skills part 2.• The best platforms to launch your course as a self-published instructor and their business models. • And much, much more!THE BEST PART• You don’t need to have a website.• You don’t have to pay for advertising.• You don’t have to FILM yourself. • You don’t have to be a technical savvy.• You don’t have to worry about video hosting. • You don’t have to have a higher academic degree.

    According to the August Forrester Report, 56 percent of IT managers interviewed at Global 2,500 companies are already using some type of open source software in their infrastructure and another 6 percent will install it in the next two years. This revolutionary model for collaborative software development is being embraced and studied by many of the biggest players in the high-tech industry, from Sun Microsystems to IBM to Intel.The Cathedral & the Bazaar is a must for anyone who cares about the future of the computer industry or the dynamics of the information economy. Already, billions of dollars have been made and lost based on the ideas in this book. Its conclusions will be studied, debated, and implemented for years to come. According to Bob Young, "This is Eric Raymond's great contribution to the success of the open source revolution, to the adoption of Linux-based operating systems, and to the success of open source users and the companies that supply them."The interest in open source software development has grown enormously in the past year. This revised and expanded paperback edition includes new material on open source developments in 1999 and 2000. Raymond's clear and effective writing style accurately describing the benefits of open source software has been key to its success. With major vendors creating acceptance for open source within companies, independent vendors will become the open source story in 2001.

    Naturally, that means John Walkenbach returns with a new edition of his bestselling VBA Programming book and covers all the methods and tools you need to know in order to program with Excel. With this comprehensive guide, Mr. Spreadsheet shows you how to maximize your Excel experience using professional spreadsheet application development tips from his own personal bookshelf.Featuring a complete introduction to Visual Basic for Applications and fully updated for the latest features of Excel 2013, this essential reference includes an analysis of Excel application development and is packed with procedures, tips, and ideas for expanding Excel's capabilities with VBA.Offers an analysis of Excel application development and a complete introduction to VBA Features invaluable advice from Mr. Spreadsheet himself, bestselling author John Walkenbach, who demonstrates all the techniques you need to create Excel applications, both large and small Covers navigating the Excel interface, formatting worksheets, interacting with other Office applications, working with collaboration tools, and using sample workbooks and John Walkenbach's award-winning Power Utility Pak to help enhance your Excel skills Provides tips, tricks, and techniques for expanding Excel's capabilities with VBA that you wont find anywhere else Excel 2013 Power Programming with VBA is packed with procedures, tips, and ideas for achieving Excel excellence with VBA.

    It was a sea in name only. It was actually a bone dry, ancient dusty basin pockmarked with craters and littered with rocks and boulders. Somewhere in that 500 mile diameter basin, the astronauts would attempt to make Mankind’s first landing on the Moon. Neil Armstrong would pilot the Lunar Module “Eagle” during its twelve minute descent from orbit down to a landing. Col. Edwin “Buzz” Aldrin would assist him. On the way down they would encounter a host of problems, any one of which could have potentially caused them to have to call off the landing, or, even worse, die making the attempt. The problems were all technical-communications problems, computer problems, guidance problems, sensor problems. Armstrong and Aldrin faced the very real risk of dying by the very same technical sword that they had to live by in order to accomplish the enormous task of landing on the Moon for the first time. Yet the human skills Armstrong and Aldrin employed would be more than equal to the task. Armstrong’s formidable skills as an aviator, honed from the time he was a young boy, would serve him well as he piloted Eagle down amidst a continuing series of systems problems that might have fatally distracted a lesser aviator. Armstrong’s brilliant piloting was complemented by Aldrin’s equally remarkable discipline and calmness as he stoically provided a running commentary on altitude and descent rate while handling systems problems that threatened the landing. Finally, after a harrowing twelve and a half minutes, Armstrong gently landed Eagle at “Tranquility Base”, a name he had personally chosen to denote the location of the first Moon landing. In “Landing Eagle-Inside the Cockpit During the First Moon Landing”, author Mike Engle gives a minute by minute account of the events that occurred throughout Eagle’s descent and landing on the Moon. Engle, a retired NASA engineer and Mission Control flight controller, uses NASA audio files of actual voice recordings made inside Eagle’s cockpit during landing to give the reader an “inside the cockpit” perspective on the first Moon landing. Engle’s transcripts of these recordings, along with background material on the history and technical details behind the enormous effort to accomplish the first Moon landing, give a new and fascinating insight into the events that occurred on that remarkable day fifty years ago.