You could spend years discovering solutions to them all, step by step as you encounter them. Or you can just look in here. All successful database applications are destined to eventually run into issues scaling up their performance. Peek into the future of your PostgreSQL database's problems today. Know the warning signs to look for, and how to avoid the most common issues before they even happen. Surprisingly, most PostgreSQL database applications evolve in the same way: Choose the right hardware. Tune the operating system and server memory use. Optimize queries against the database, with the right indexes. Monitor every layer, from hardware to queries, using some tools that are inside PostgreSQL and others that are external. Using monitoring insight, continuously rework the design and configuration. On reaching the limits of a single server, break things up; connection pooling, caching, partitioning, and replication can all help handle increasing database workloads. The path to a high performance database system isn't always easy. But it doesn't have to be mysterious with the right guide. This book is a clear, step-by-step guide to optimizing and scaling up PostgreSQL database servers. - Publisher.

    One minute we were living life and doing our thing, the next, most of us were advised to stay at home for a month or more.

    For introductory courses in computer concepts or computer literacy often including instruction in Microsoft Office.A Computer Concepts Text Focused on Today’s Student!Technology in Action engages students by combining a unique teaching approach with rich companion media.

    If you or someone you know is discontented, distressed, or downright disturbed, maybe the Great White North is right for you, eh. But how much do you really know about Canada? Can you do a job that Canada needs (do you play hockey, drill for oil, or make poutine?)? Can you identify the best Canadian province for your lifestyle (lots of tundra or just some tundra?)? Can you master the proper pronunciation of "sorry"? What strange wizardry is the Canadian government? Is maple syrup acceptable substitution for currency? At long last, How to Move to Canada can help make your vague threat into a cold Canadian reality. This book is also full of activities such as: Color the flag of your new homeland Match the strange Canuck dialect with their local definitions And more! PLEASE NOTE: This is a humor book. It won't really help you emigrate. Rather, it's a subversive mix of real information on the Great White North plus a hilarious look at all the reasons why you won't like it there any better — and why they probably won't have you anyway.

    As far as apps go, what do you put on your new Fire? With tens of thousands of apps out there and more appearing on a daily basis, how do you choose what's useful, as opposed to what may be a waste of your download time? Here is the answer, newly updated with over 300 of the best FREE apps for your Fire. Top 300 Free Apps for the Kindle Fire is your guide to 300 of the top rated apps that you'll find useful for your Kindle Fire. Jones has taken the time to research and compile this extensive list of apps for your Kindle Fire, and best of all, each of these apps are FREE. You'll find apps for the home office, for entertainment, for news, weather, and sports, for your health, for managing your finances, for playing games, and more. A new local news apps section provides news, weather, and traffic apps for over 50 major US cities, and a new travel section gives you an insight to the best apps that will help you find great deals on flights, hotel rooms, cruises, dining, and even the best gas prices around your hometown or when on the road.We’ve also taken the time to create each listing beginning with a clickable link back to the Amazon catalog. So as you read this book on your Kindle, if any particular app sounds like what you’ve been looking for, just tap the image or heading name. You’ll be taken directly to the Amazon page for the app, where you can click the button to install that app. (Active wi-fi connection required.)And this isn't just a list of names with little helpful information, like some guides out there that we'd prefer not to mention. In this book, you'll find detailed write-ups for each app, with specifics as to what the app can (and cannot) do for you. Let Top 300 Free Apps for the Kindle Fire be your guide to the best free apps for your new tablet!Top 300 Free Apps for the Kindle Fire comes from the pen of Edward Jones, the principal technology writer behind the "Get-it-Done" series of computer books. Jones is an experienced computer and technology writer, database applications development analyst, consultant, and trainer who understands the issues faced by people dealing with technology, day in and day out. His career spans years of technology training, database development, and consulting services for major law firms and government agencies in the Washington, DC area, and he currently resides in Charlotte, NC where he is concentrating on providing publications to the rapidly growing digital marketplace. Jones is also a best-selling author whose printed titles have sold over one million copies, and he has served as a technical editor on numerous computer books.

    Consumer's identities are being stolen, and a person's every step is being tracked and stored. What once might have been dismissed as paranoia is now a hard truth, and privacy is a luxury few can afford or understand.In this explosive yet practical book, Kevin Mitnick illustrates what is happening without your knowledge--and he teaches you "the art of invisibility." Mitnick is the world's most famous--and formerly the Most Wanted--computer hacker. He has hacked into some of the country's most powerful and seemingly impenetrable agencies and companies, and at one point he was on a three-year run from the FBI. Now, though, Mitnick is reformed and is widely regarded as the expert on the subject of computer security. He knows exactly how vulnerabilities can be exploited and just what to do to prevent that from happening. In THE ART OF INVISIBILITY Mitnick provides both online and real life tactics and inexpensive methods to protect you and your family, in easy step-by-step instructions. He even talks about more advanced "elite" techniques, which, if used properly, can maximize your privacy. Invisibility isn't just for superheroes--privacy is a power you deserve and need in this modern age.

    From Mary, Queen of Scots, trapped by her own code, to the Navajo Code Talkers who helped the Allies win World War II, to the incredible (and incredibly simple) logisitical breakthrough that made Internet commerce secure, The Code Book tells the story of the most powerful intellectual weapon ever known: secrecy.Throughout the text are clear technical and mathematical explanations, and portraits of the remarkable personalities who wrote and broke the world’s most difficult codes. Accessible, compelling, and remarkably far-reaching, this book will forever alter your view of history and what drives it. It will also make you wonder how private that e-mail you just sent really is.

    Since ours is the only guidebook that's official, this book includes the most accurate information on prices, changes, and new attractions for 2013: --The Magic Kingdom's Fantasyland is undergoing a massive expansion. We offer expert coverage of all the new attractions and eateries in this evolving wonderland, including The Seven Dwarfs Mine Train coaster (an E-ticket addition to the park's attraction lineup), and the boisterous Be Our Guest dinner experience in the brand-new Beast's Castle.--Disney villains are causing trouble and only YOU can stop them! Birnbaum delivers the details of a new, interactive role-playing game known as Sorcerers of the Magic Kingdom. In this high-tech adventure, Merlin the Magician recruits park guests to help defeat an army of Disney villains.--There is a new resort in town: The colorful, "value" property dubbed Art of Animation. Birnbaum's description will help you decide if this family-friendly resort is for you--and show how to book a room or suite that suits your budget.--The Disney Dining Plan is ever-changing. Trust Birnbaum to deliver the latest on this popular program.--Downtown Disney is in the midst of a metamorphosis. Birnbaum describes the latest changes and additions to this shopping, dining, and entertainment district. Among the newest draws is Splitsville, WDW's go-to destination for bowling, billiards, and more. We will give you the skinny on this new play zone, plus many other additions to the Downtown Disney landscape.--Many classic Disney resorts are offering new layers of luxury--from princess or pirate rooms to wellness suites--and we have the scoop on getting the royal treatment at Walt Disney World.

    It covers the basics of computer programming, including variables and values, functions, conditionals and control flow, program development and debugging. Later chapters cover basic algorithms and data structures.

    Madhusudhan Konda provides an overview of these, including strings in switch statements, multi-catch exception handling, try-with-resource statements, the new File System API, extensions of the JVM, support for dynamically-typed languages, and the fork and join framework for task parallelism.

    This classic guide—fully updated for Windows Server 2003, Windows XP, and Windows 2000, including 64-bit extensions—describes the architecture and internals of the Windows operating system. You’ll find hands-on experiments you can use to experience Windows internal behavior firsthand, along with advanced troubleshooting information to help you keep your systems running smoothly and efficiently. Whether you’re a developer or a system administrator, you’ll find critical architectural insights that you can quickly apply for better design, debugging, performance, and support.Get in-depth, inside knowledge of the Windows operating system: Understand the key mechanisms that configure and control Windows, including dispatching, startup and shutdown, and the registry Explore the Windows security model, including access, privileges, and auditing Investigate internal system architecture using the kernel debugger and other tools Examine the data structures and algorithms that deal with processes, threads, and jobs Observe how Windows manages virtual and physical memory Understand the operation and format of NTFS, and troubleshoot file system access problems View the Windows networking stack from top to bottom, including mapping, APIs, name resolution, and protocol drivers Troubleshoot boot problems and perform crash analysis

    I asked other people and they didn't seem to know how these things work, or at least they couldn't explain them in a way that I could understand. Counter Hack Reloaded is the clearest explanation of these tools I have ever seen. Thank you!" --Stephen Northcutt, CEO, SANS Institute "Ed Skoudis does it again! With this new edition, Ed takes a phenomenal work to the next level! This book is a 'must-have' and a 'must-read' for anyone remotely associated with computers and computer security." --Harlan Carvey, CISSP, author of Windows Forensics and Incident Recovery "Ed Skoudis is a rare individual. He knows the innards of all the various systems, knows all the latest exploits and defenses, and yet is able to explain everything at just the right level. The first edition of Counter Hack was a fascinating read. It's technically intriguing and very clear. . . . A book on vulnerabilities, though, will get out of date, and so we definitely needed this updated and significantly rewritten second edition. This book is a wonderful overview of the field." --From the Foreword by Radia Perlman, series editor, The Radia Perlman Series in Computer Networking and Security; author of Interconnections; and coauthor of Network Security: Private Communications in a Public World "What a great partnership! Ed Skoudis and Tom Liston share an uncanny talent for explaining even the most challenging security concepts in a clear and enjoyable manner. Counter Hack Reloaded is an indispensable resource for those who want to improve their defenses and understand the mechanics of computer attacks." --Lenny Zeltser, coauthor of Malware: Fighting Malicious Code "Ed Skoudis does it again! With this new edition, Ed takes a phenomenal work to the next level! This book is a 'must-have' and a 'must-read' for anyone remotely associated with computers and computer security." --Harlan Carvey, CISSP, author of Windows Forensics and Incident Recovery "In addition to having breadth of knowledge about and probing insights into network security, Ed Skoudis's real strength is in his ability to show complex topics in an understandable form. By the time he's done, what started off as a hopeless conglomeration of acronyms starts to sound comfortable and familiar. This book is your best source for understanding attack strategies, attack tools, and the defenses against both." --William Stearns, network security expert, www.stearns.org "This book is a must-have for anyone in the Internet security game. It covers everything from the basic principles to the fine details of online attack methods and counter-strategies and is very engagingly written." --Warwick Ford, coauthor of Secure Electronic Commerce For years, Counter Hack has been the primary resource for every network/system administrator and security professional who needs a deep, hands-on understanding of hacker attacks and countermeasures. Now, leading network security expert Ed Skoudis, with Tom Liston, has thoroughly updated this best-selling guide, showing how to defeat today's newest, most sophisticated, and most destructive attacks.For this second edition, more than half the content is new and updated, including coverage of the latest hacker techniques for scanning networks, gaining and maintaining access, and preventing detection. The authors walk you through each attack and demystify every tool and tactic. You'll learn exactly how to establish effective defenses, recognize attacks in progress, and respond quickly and effectively in both UNIX/Linux and Windows environments.Important features of this new edition includeAll-new "anatomy-of-an-attack" scenarios and tools An all-new section on wireless hacking: war driving, wireless sniffing attacks, and more Fully updated coverage of reconnaissance tools, including Nmap port scanning and "Google hacking" New coverage of tools for gaining access, including uncovering Windows and Linux vulnerabilities with Metasploit New information on dangerous, hard-to-detect, kernel-mode rootkits

    Along the way, we encounter black holes, turtles, snakes, dragons, axe-sharpening, and yak-shaving—and take a guided tour through the theories and methods, both brilliant and misguided, that litter the history of software development, from the famous ‘mythical man-month’ to Extreme Programming. Not just for technophiles but for anyone captivated by the drama of invention, Dreaming in Code offers a window into both the information age and the workings of the human mind.

    This book brings you up-to-date with the latest changes in this crucial service.The fifth edition covers BIND 9.3.2, the most recent release of the BIND 9 series, as well as BIND 8.4.7. BIND 9.3.2 contains further improvements in security and IPv6 support, and important new features such as internationalized domain names, ENUM (electronic numbering), and SPF (the Sender Policy Framework).Whether you're an administrator involved with DNS on a daily basis or a user who wants to be more informed about the Internet and how it works, you'll find that this book is essential reading.Topics include:What DNS does, how it works, and when you need to use it How to find your own place in the Internet's namespace Setting up name servers Using MX records to route mail Configuring hosts to use DNS name servers Subdividing domains (parenting) Securing your name server: restricting who can query your server, preventing unauthorized zone transfers, avoiding bogus servers, etc. The DNS Security Extensions (DNSSEC) and Transaction Signatures (TSIG) Mapping one name to several servers for load sharing Dynamic updates, asynchronous notification of change to a zone, and incremental zone transfers Troubleshooting: using nslookup and dig, reading debugging output, common problems DNS programming using the resolver library and Perl's Net::DNS module

    In this MTHFR booklet, learn why Dr Lynch has dedicated himself to expanding awareness of the MTHFR gene defect - and more importantly, how you can be proactive in optimizing your health.