If you have experience with at least one programming language and are looking to integrate Twilio into your applications, then this book is for you.

Design, develop and deploy a highly available vSphere environment for VMware Horizon View About This Book Enhance your capability of meeting various Service Level Agreements in VMware Horizon View Get acquainted through all the necessary considerations for building a View environment Cover VMware High Availability hurdle by hurdle along with the checklists for verification of the environment being ready for production Who This Book Is For If you manage, plan or deploy VMware Horizon View or are looking for tips for best practices and configuration details this book is for you. This book is intended for administrators who design and deploy VMware Horizon View or administrators who are looking for ways to improve their existing View environment. What You Will Learn Install and configure a VMware Horizon View Connection Server and redundant pair Discover the networking requirements for View and learn how to build redundancy into your network Analyze each of the View user pool types and how each one can be made highly available and survivable. Get to know about storage protocols such as NFS, iSCSI and Fibre Channel Deploy Virtual SAN, and find out how to effectively couple Virtual SAN with View Learn about View monitoring tools to allow fast responses to various crises Plan, analyze and upgrade VMware Horizon View Analyze network services required for VMware Horizon View and build them in a redundant manner In Detail The increasing movement to virtualize workloads and workstations has put VMware Horizon View into a central mission critical role in many environments. Administrators may be overwhelmed with planning for outages and dealing with failure scenarios. It’s easy to miss small details that will result in outages down the road. Following VMware Horizon View best practices and planning ahead with network infrastructure will allow you to avoid these common pit falls. This book will walk you through the setup and configuration of View in a highly available configuration. It will provide you with the skills to analyze and deploy configurations that can stand up to rigorous failure standards. The book starts with deploying and basic configuration of VMware Horizon View in a redundant setup, then moves on to cover high availability for networking, fibre channel, NFS, and iSCSI. We finish this book with monitoring and upgrade planning. At the end we also learn about maintaining the uptime and minimizing the downtime that can be caused due to various factors. Each topic comes with a list of best practices and failure scenarios to test. Administrators will learn the intricacies of protecting a View environment. Style and approach This book provides configuration and installation steps for administration and installation of a Horizon View server. It includes high-level overviews of any protocols, services used by Horizon View, and best practices and high availability checklists for each chapter.

Identify, capture and resolve common issues faced by Red Hat Enterprise Linux administrators using best practices and advanced troubleshooting techniquesAbout This BookDevelop a strong understanding of the base tools available within Red Hat Enterprise Linux (RHEL) and how to utilize these tools to troubleshoot and resolve real-world issuesGain hidden tips and techniques to help you quickly detect the reason for poor network/storage performanceTroubleshoot your RHEL to isolate problems using this example-oriented guide full of real-world solutions Who This Book Is For If you have a basic knowledge of Linux from administration or consultant experience and wish to add to your Red Hat Enterprise Linux troubleshooting skills, then this book is ideal for you. The ability to navigate and use basic Linux commands is expected.What You Will LearnIdentify issues that need rapid resolution against long term root cause analysisDiscover commands for testing network connectivity such as telnet, netstat, ping, ip and curlSpot performance issues with commands such as top, ps, free, iostat, and vmstatUse tcpdump for traffic analysisRepair a degraded file system and rebuild a software raidIdentify and troubleshoot hardware issues using dmesgTroubleshoot custom applications with strace and knowledge of Linux resource limitations In Detail Red Hat Enterprise Linux is an operating system that allows you to modernize your infrastructure, boost efficiency through virtualization, and finally prepare your data center for an open, hybrid cloud IT architecture. It provides the stability to take on today's challenges and the flexibility to adapt to tomorrow's demands. In this book, you begin with simple troubleshooting best practices and get an overview of the Linux commands used for troubleshooting. The book will cover the troubleshooting methods for web applications and services such as Apache and MySQL. Then, you will learn to identify system performance bottlenecks and troubleshoot network issues; all while learning about vital troubleshooting steps such as understanding the problem statement, establishing a hypothesis, and understanding trial, error, and documentation. Next, the book will show you how to capture and analyze network traffic, use advanced system troubleshooting tools such as strace, tcpdump & dmesg, and discover common issues with system defaults. Finally, the book will take you through a detailed root cause analysis of an unexpected reboot where you will learn to recover a downed system.Style and approach This is an easy-to-follow guide packed with examples of real-world core Linux concepts. All the topics are presented in detail while you’re performing the actual troubleshooting steps.

Design documents and implement real world e-commerce applications with Couchbase About This Book Get acquainted with Couchbase architecture and design your document-based data schema Implement full text search using industry standard elastic search plugins Develop critical and high performance applications using this hands-on tutorial guide Who This Book Is For If you are new to the NoSQL document system or have little or no experience in NoSQL development and administration and are planning to deploy Couchbase for your next project, then this book is for you. It would be helpful to have a bit of familiarity with Java. What You Will Learn Get acquainted with the concept of NoSQL databases and configure your Couchbase database cluster Maintain Couchbase effectively using the web-based administrative console with ease Enable partition capabilities by making use of Buckets Analyze important design considerations for maintaining relationship between various documents Use Couchbase SDK Java API to store and retrieve document Write views using map/reduce to retrieve documents efficiently Get familiar with N1QL and how to use it in Java applications Integrate Couchbase with Elasticsearch to implement full text search Configure XDCR for disaster recovery and develop ecommerce application using Couchbase In Detail This book achieves its goal by taking up an end-to-end development structure, right from understanding NOSQL document design to implementing full fledged eCommerce application design using Couchbase as a backend. Starting with the architecture of Couchbase to get you up and running, this book quickly takes you through designing a NoSQL document and implementing highly scalable applications using Java API. You will then be introduced to document design and get to know the various ways to administer Couchbase. Followed by this, learn to store documents using bucket. Moving on, you will then learn to store, retrieve and delete documents using smart client base on Java API. You will then retrieve documents using SQL like syntax call N1QL. Next, you will learn how to write map reduce base views. Finally, you will configure XDCR for disaster recovery and implement an eCommerce application using Couchbase. Style and approach The book starts from absolute basics and slowly moves to more advanced topics ensuring at every step that all concepts and terms are understood by the reader to have complete understanding at every stage. Technical and complex terms are explained in clear and simple language, thus making this book a perfect companion for those who have started their journey to NoSQL using Couchbase

Design, develop, and solve real world automation and orchestration needs by unlocking the automation capabilities of Ansible About This Book Discover how Ansible works in detail Explore use cases for Ansible’s advanced features including task delegation, fast failures, and serial task execution Extend Ansible with custom modules, plugins, and inventory sources Who This Book Is For This book is intended for Ansible developers and operators who have an understanding of the core elements and applications but are now looking to enhance their skills in applying automation using Ansible. What You Will Learn Understand Ansible’s code and logic flow Safeguard sensitive data within Ansible Access and manipulate complex variable data within Ansible playbooks Handle task results to manipulate change and failure definitions Organize Ansible content into a simple structure Craft a multi-tier rollout playbook utilizing load balancers and manipulating your monitoring system Utilize advanced Ansible features to orchestrate rolling updates with almost no service disruptions Troubleshoot Ansible failures to understand and resolve issues Extend Ansible with custom modules, plugins, or inventory sources In Detail Automation is critical to success in the world of DevOps. How quickly and efficiently an application deployment can be automated, or a new infrastructure can be built up, can be the difference between a successful product or a failure. Ansible provides a simple yet powerful automation engine. Beyond the basics of Ansible lie a host of advanced features which are available to help you increase efficiency and accomplish complex orchestrations with ease. This book provides you with the knowledge you need to understand how Ansible works at a fundamental level and leverage its advanced capabilities. You'll learn how to encrypt Ansible content at rest and decrypt data at runtime. You will master the advanced features and capabilities required to tackle the complex automation challenges of today and beyond. You will gain detailed knowledge of Ansible workflows, explore use cases for advanced features, craft well thought out orchestrations, troubleshoot unexpected behaviour, and extend Ansible through customizations. Finally, you will discover the methods used to examine and debug Ansible operations, helping you to understand and resolve issues. Style and approach A clear, practical guide that covers best practise, system architecture and design aspects that will help you master Ansible with ease.

Extract and analyze data from complex images with ImageJ, the world’s leading image processing tool About This Book Design automated image-processing solutions and speed up image-processing tasks with ImageJ Create quality and intuitive interfaces for image processing by developing a basic framework for ImageJ plugins. Tackle even the most sophisticated datasets and complex images Who This Book Is For The book has been created for engineers, scientists, and developers eager to tackle image processing with one of the leading tools available. No prior knowledge of ImageJ is needed. Familiarity with Java programming will be required for readers to code their own routines using ImageJ. What You Will Learn Install and set up ImageJ for image processing. Process images using ImageJ’s built-in tools Create macros to perform repetitive processing tasks Set up and use an integrated development environment for ImageJ plugins Create plugins with a user-friendly interface for processing Use established ImageJ plugins for processing and quantification Generate a simple interface based on a real world example and create other interfaces for other projects Speed up interface development by setting multiple parameters interactively In Detail Advances in image processing have been vital for the scientific and technological communities, making it possible to analyze images in greater detail than ever before. But as images become larger and more complex, advanced processing techniques are required. ImageJ is built for the modern challenges of image processing – it’s one of the key tools in its development, letting you automate basic tasks so you can focus on sophisticated, in depth analysis. This book demonstrates how to put ImageJ into practice. It outlines its key features and demonstrates how to create your own image processing applications using macros and ImageJ plugins. Once you’ve got to grips with the basics of ImageJ, you’ll then discover how to build a number of different image processing solutions. From simple tasks to advanced and automated image processing, you’ll gain confidence with this innovative and powerful tool – however and whatever you are using it for. Style and approach A step-by-step guide to image processing and developing macros and plugins in ImageJ. The book will progress from using the built-in tools to macros and finally plugins for image processing.

This book is a comprehensive collection of recipes that elaborate on known use cases. You will find an organized step-by-step procedure to accomplish each task followed by detailed explanations to better understand how and why each step was undertaken, and many links to online references and other related sections in the book that supplement the subject in question. The book is written so that you can work through the recipes in order or go straight to the recipes that interest you; where a recipe depends on other recipes they are clearly referenced. If you are a Java developer, Rich Internet Application content developer, or graphic designer who wants to build RIAs featuring animations, videos, and other feature-rich content, this book is for you. Knowledge of Java, JavaScript, and JavaFX components is not essential, but will help you exploit this book to your advantage.

This is a developer's guide and is written in a style suitable to professionals. The initial chapters cover the basic theory and principles of Q replication and WebSphere MQ. As the book advances, numerous real-world scenarios and examples are covered with easy-to-understand code. The knowledge gained in these chapters culminate in the Appendix, which contains step-by-step instructions to set up various Q replication scenarios. If you are a professional who needs to set up and administer a Q replication or Event Publishing environment, then this is the book you need. The book will give you a clear idea of how to implement Q replication on z/OS whether you work on Linux, Unix, or Windows operating system.

The book includes extensive discussion of the design issues, and how to overcome them in the framework. Each chapter of the book focuses on a particular requirement of the framework. The book will not present the total code for a framework, which requires many thousands of lines. But it does show the parts that raise critical design or implementation issues. For these, detailed explanation is given, leaving the less problematic parts to the code download itself. If you are a professional PHP developer who wants to know more about web oriented frameworks and content management systems, this book is for you. Whether you already use an in-house developed framework or are developing one, or if you are simply interested in the issues involved in this demanding area, you will find discussion ranging from design issues to detailed coding solutions in this book. You are expected to have experience working with PHP 5 object-oriented programming. Examples in the book will run on any recent version of PHP 5, including 5.3.

The book is a detailed guide to building integrations on top of Alfresco filled with tons of examples and sample code. It is intended to be a complete overview to help developers choose a specific API with related method invocations. If you are a web developer who wants to build business applications on top of Alfresco, then this is the book for you. Basic understanding of XML, Web development concepts (HTTP, MVC) and Web Services is required.

This book employs the tactic of "you and me talking", which makes learning effortless and fun... even addictive! It's full of specific examples, shortcuts, and ready-to-use strategies. You'll end up with a working, ready-to-use Oracle UCM system by the end of Chapter 2. And you can jump chapters and read them in any order that better suits your passion or your assignment at hand. If you want to get started with Oracle UCM, this is the perfect book for you. This book is also beneficial for Oracle Stellent UCM users, administrators, and developers who are ready to jump up to the next level of expertise.

The book begins with the very foundations of OOP and then uses practical examples to show how to correctly implement Object Oriented Programming in Python. Many examples are taken from real-world projects. The book focuses on high-level design as well as the gritty details of the Python syntax. The provided exercises inspire the reader to think about his or her own code, rather than providing solved problems. If you're new to Object Oriented Programming techniques, or if you have basic Python skills and wish to learn in depth how and when to correctly apply Object Oriented Programming in Python, this is the book for you. If you are an object-oriented programmer for other languages, you too will find this book a useful introduction to Python, as it uses terminology you are already familiar with. Python 2 programmers seeking a leg up in the new world of Python 3 will also find the book beneficial, and you need not necessarily know Python 2.

This book is a tutorial with step-by-step instructions, packed with practical code examples, images, advice, and ideas. If you are a PHP developer who is working with Joomla!, this book is for you. It is also aimed at web designers who want to add JavaScript elements, using jQuery, to their Joomla! sites, themes, modules, and other extensions. A basic knowledge of web development and Joomal! is required. Some knowledge of JavaScript would certainly be a bonus. No knowledge of jQuery is required.

Each recipe comprises step-by-step instructions followed by the analysis of what was done in each task and other useful information. The book is designed so that you can read it chapter by chapter, or you can look at the list of recipes and refer to them in no particular order. There are plenty of useful screenshots to make learning easier for you. This book is for WordPress developers who want to create powerful themes for their blogs and web sites to impress and influence visitors. This book expects working knowledge of the WordPress platform. Knowledge of HTML and CSS would also be useful.

This book is a concise guide that focuses solely on implementing Compiere. It uses a business scenario case study throughout to illustrate the sort of decisions and considerations required at critical stages in a real-life Compiere implementation. If you are considering or want to easily implement Compiere in your organization, this book is for you. This book will also be beneficial to system users and administrators who wish to implement an ERP system. No previous knowledge of Compiere is required.

This book is a practical real-world tutorial covering everything you need to know about Amazon SimpleDB. You will come across examples in three languages: Java, PHP, and Python. This book is aimed at transforming you from a beginner to an advanced developer. If you are a developer wanting to build scalable web-based database applications using SimpleDB, then this book is for you. You do not need to know anything about SimpleDB to read and learn from this book, and no basic knowledge is strictly necessary. This guide will help you to start from scratch and build advanced applications.

This is a Beginner's Guide, with plenty of worked examples, step-by-step visual guides, and explanations. If you are a Moodle administrator, ICT technical personnel, designer or a teacher and wish to enhance your Moodle site to make it visually attractive, then this book is for you. You should be familiar with the basics of Moodle operation, and some familiarity with web design techniques, such as HTML and CSS, will be helpful.

The book is a detailed reference guide, and an invaluable resource for answers to all your queries about jQuery. It is intended to be a quick reference to help at times when you need to quickly confirm a feature of the library This book is for you if you are a web developer who wants a broad, organized view of all that jQuery library has to offer or a quick reference on their desk to refer to for particular details. Basic knowledge of HTML and CSS is required. You should be comfortable with the syntax of JavaScript, but no knowledge of jQuery is assumed. This is a reference guide, not an introductory title and if you are looking to get started with jQuery (or JavaScript libraries in general) then you are looking for the companion title Learning jQuery 1.3.

This book contains clear guidance for all who want to put together effective online courses that motivate students and encourage dynamic learning. There are clear, step-by-step instructions with helpful screenshots and diagrams to guide you along the way. If you want to unleash your teaching talents and develop exciting, dynamic courses that really get students moving forward, then this book is for you. Experienced Moodlers who want to upgrade to Moodle 1.9 will find powerful insights into developing more successful and educational courses.

This beginner's guide is packed with information, tips, and tricks, based on the author's extensive experience with Apache Roller. In next to no time, you will be able to build and deploy your own blog. The clear and concise hands-on exercises will teach you everything you need to know to install, configure, and use Apache Roller, along with the open source software required to run it. The book includes plenty of illustrations to guide you through all the detailed exercises and tutorials, so you can get the most out of every chapter. If you are interested in establishing a blog, using Apache Roller and popular web applications to write attractive posts and promote your blog on all the major social bookmarking services, this book is for you. No previous experience on Tomcat, MySQL, the Apache Web Server, or Linux is required.

This is a practical book, where every example is tested and all source code is available with the book. Each chapter ends with work on a sample application using the new things learned. At the end of the book there is a complete, usable Travel Blog application. This book is for web developers who want to develop applications using the Backbase Client Framework. It may also be interesting for web developers and web application architects who want to know more about XML-based web application architectures.