A practical approach to test-driven development for Ruby on Rails using RSpec and related tools.

    

    We're going to do that by introducing you to Example.com, where you're going to start a new job as one of its SysAdmins. The first project you'll be in charge of is developing its new log management solution. We'll teach you how to:* Install and deploy LogStash.* Ship events from a LogStash Shipper to a central LogStash server.* Filter incoming events using a variety of techniques.* Output those events to a selection of useful destinations.* Use LogStash's Web interface and alternative interfaces like Kibana.* Scale out your LogStash implementation as your environment grows.* Quickly and easily extend LogStash to deliver additional functionality you might need.By the end of the book you should have a functional and effective log management solution that you can deploy into your own environment.

    Explore applying the Hexagonal Architecture within your application, whether within an open source framework or your own bespoke system. Finally, look into integrating Bounded Contexts, using REST and Messaging approaches.

    Want to impress your coworkers and write the fastest, most efficient, stable code you ever have? Don't reinvent the wheel. Reuse decades of research into battle-tested, highly optimized, and proven techniques available on any Unix system.This book will teach you what you need to know so that you can write your own servers, debug your entire stack when things go awry, and understand how things are working under the hood.http://www.jstorimer.com/products/wor...

    With Step By Step, you set the pace-building and practicing the skills you need, just when you need them! Topics include building a project plan and fine-tuning the details; scheduling tasks, assigning resources, and managing dependencies; monitoring progress and costs; keeping projects on track; communicating project data through Gantt charts and other views.

    

    100 complete coverage of all official objectives for Exams EX200 and EX300 Exam Readiness Checklist-youre ready for the exam when all objectives on the list are checked off Inside the Exam sections in every chapter highlight key exam topics covered Two-Minute Drills for quick review 100 lab questions-two full lab-based RHCSA exams and two full lab-based RHCE exams-match the format, tone, topics, and difficulty of the real exam Covers all the exam topics, including Virtual Machines and Automated Installations Fundamental Command Line Skills RHCSA-Level Security Options The Boot Process Linux Filesystem Administration Package Management User Administration RHCSA-Level System Administration RHCE Security System Services and SELinux RHCE Administration Mail Servers Samba File Sharing DNS, FTP, and Logging CD-ROM includes Complete lab-based exam preparation, featuring Two full RHCSA practice exams Two full RHCE practice exams Lab-based chapter self tests In-depth answer explanations for all labs RHCSA and RHCE Glossary PDF copy of the book for studying on the go Michael Jang, RHCE, LPIC-2, UCP, LCP, MCP, is the author of three previous bestselling editions of RHCE Red Hat Certified Engineer Linux Study Guide and several other books on Linux and professional certification.

    Now, Core JavaServer™ Faces–the #1 guide to JSF–has been thoroughly updated in this second edition, covering the latest feature enhancements, the powerful Ajax development techniques, and open source innovations that make JSF even more valuable. Authors David Geary and Cay Horstmann delve into all facets of JSF 1.2 development, offering systematic best practices for building robust applications, minimizing handcoding, and maximizing productivity. Drawing on unsurpassed insider knowledge of the Java platform, they present solutions, hints, tips, and “how-tos” for writing superior JSF 1.2 production code, even if you’re new to JSF, JavaServer Pages™, or servlets.The second edition’s extensive new coverage includes: JSF 1.2’s improved alignment with the broader Java EE 5 platform; enhancements to the JSF APIs; controlling Web flow with Shale; and using Facelets to replace JSP with XHTML markup. The authors also introduce Ajax development with JSF–from real-time validation and Direct Web Remoting to wrapping Ajax in JSF components and using the popular Ajax4jsf framework.This book will help you Automate low-level details and eliminate unnecessary complexity in server-side development Discover JSF best practices, ranging from effective UI design and style sheets to internationalization Use JSF with Tiles to build consistent, reusable user interfaces Leverage external services such as databases, LDAP directories, authentication/authorization, and Webservices Use JBoss Seam to greatly simplify development of database-backed applications Implement custom components, converters, and validators Master the JSF 1.2 tag libararies, and extend JSF with additional tag libraries Preface Acknowledgments Chapter 1: Getting Started Chapter 2: Managed Beans Chapter 3: Navigation Chapter 4: Standard JSF Tags Chapter 5: Data Tables Chapter 6: Conversion and Validation Chapter 7: Event Handling Chapter 8: Subviews and Tiles Chapter 9: Custom Components, Converters, and Validators Chapter 10: External Services Chapter 11: Ajax Chapter 12: Open Source Chapter 13: How Do I . . . Index

    With this concise book, you will quickly gain working knowledge of Sinatra and its minimalist approach to building both standalone and modular web applications. Sinatra serves as a lightweight wrapper around Rack middleware, with syntax that maps closely to functions exposed by HTTP verbs, which makes it ideal for web services and APIs. If you have experience building applications with Ruby, you’ll quickly learn language fundamentals and see under-the-hood techniques, with the help of several practical examples. Then you’ll get hands-on experience with Sinatra by building your own blog engine. Learn Sinatra’s core concepts, and get started by building a simple application Create views, manage sessions, and work with Sinatra route definitions Become familiar with the language’s internals, and take a closer look at Rack Use different subclass methods for building flexible and robust architectures Put Sinatra to work: build a blog that takes advantage of service hooks provided by the GitHub API

    Coverage Includes: Shows administrators how to use VMware to realize significant savings in hardware costs while still providing adequate "servers" for their users Demonstrates how to partition a physical server into several virtual machines, reducing the overall server footprint within the operations center Explains how VMware subsumes a network to centralize and simplify its management, thus alleviating the effects of "virtual server sprawl" Now that virtualization is a key cost-saving strategy, Mastering VMware vSphere 4 is the strategic guide you need to maximize the opportunities.

    That's the philosophy behind ethical hacking, and it's a growing field. Prepare for certification in this important area with this advanced study guide that covers all exam objectives for the challenging CEH Certified Ethical Hackers exam. The book provides full coverage of exam topics, real-world examples, and a CD with additional materials for extra review and practice. Covers ethics and legal issues, footprinting, scanning, enumeration, system hacking, trojans and backdoors, sniffers, denial of service, social engineering, session hijacking, hacking Web servers, Web application vulnerabilities, and more Walks you through exam topics and includes plenty of real-world scenarios to help reinforce concepts Includes a CD with review questions, bonus exams, and more study tools This is the ideal guide to prepare you for the new CEH certification exam. Reviews

    Windows Presentation Foundation (WPF) is a key component of the .NET Framework 3.0, giving you the power to create richer and more compelling applications than you dreamed possible. Whether you want to develop traditional user interfaces or integrate 3D graphics, audio/video, animation, dynamic skinning, rich document support, speech recognition, or more, WPF enables you to do so in a seamless, resolution-independent manner. Windows Presentation Foundation Unleashed is the authoritative book that covers it all, in a practical and approachable fashion, authored by .NET guru and Microsoft developer Adam Nathan. - Covers everything you need to know about Extensible Application Markup Language (XAML) - Examines the WPF feature areas in incredible depth: controls, layout, resources, data binding, styling, graphics, animation, and more - Features a chapter on 3D graphics by Daniel Lehenbauer, lead developer responsible for WPF 3D - Delves into non-mainstream topics: speech, audio/video, documents, bitmap effects, and more - Shows how to create popular UI elements, such as features introduced in the 2007 Microsoft Office System: Galleries, ScreenTips, custom control layouts, and more - Demonstrates how to create sophisticated UI mechanisms, such as Visual Studio-like collapsible/dockable panes - Explains how to develop and deploy all types of applications, including navigation-based applications, applications hosted in a Web browser, and applications with great-looking non-rectangular windows - Explains how to create first-class custom controls for WPF - Demonstrates how to create hybrid WPF software that leverages Windows Forms, ActiveX, or other non-WPF technologies - Explains how to exploit new Windows Vista features in WPF applications

    Updated just in time for 2016, this guide is the freshest on the market. Amazon Echo is not just a piece of hardware, it is not just the cylindrical product it appears to be. It is a revolutionary facilitator of your dream lifestyle, and the great news is that it just keeps on improving with every update! Amazon Echo takes the Intelligent Personal Assistant market from binary to human. The times of receiving unconvincing, often unhelpful and completely robotic responses from our devices is over and Echo is here to lead the way. Aside from covering the basics in detail, from unpacking to set-up to synchronization with your home devices, this user guide will cover the full range of features on offer with your Amazon Echo. Changing your wake word Understanding and using your Dialog History Controlling parts of your home with your voice How to use the Amazon Echo app How to get Echo to give you information, from live sports scores to the weather in Dubai! How to stream music through Echo's impressive speakers How to shop with your voice Why you will never need an alarm clock again How to handle the Kitchen with Echo's help Travel and traffic information specific to your journey or commute How to manage your shopping and to-do list How to enjoy Audibles wide range of audio books with your Amazon Echo Getting the latest news Some funny little Easter eggs that are built into the device! And plenty more! Amazon Echo is changing people's lives all over the world and this guide will help you change your own. If you are deciding whether to purchase the device, have a read through my guide and I'm certain by the time you are finished, there will be only one option in your mind! This book is available through Kindle Unlimited.

    Now, hopes and expectations for JavaScript’s future are considerable.In this insightful report, Dr. Axel Rauschmayer explains how the combination of several technologies and opportunities in the past 15 years turned JavaScript’s fortunes. With that as a backdrop, he provides a detailed look at proposed new features and fixes in the next version, ECMAScript.next, and then presents his own JavaScript wish list—such as an integrated IDE.