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Practical How-To Recipes for Android

In this article by Rick Boyer and  Kyle Merrifield Mew , the author of Android Application Development Cookbook , we'll take a look at the following recipes: Making a Flashlight with a Heads-up notification Scaling down large images to avoid out-of-memory exceptions How to get the last location Push notification using Google Cloud Messaging

Working with the Cloud

In this article by Gastón C. Hillar , author of book Internet of Things with Python , we will take advantage of many cloud services to publish and visualize data collected for sensors and to establish bi-directional communications between Internet-connected things.

Encrypting Zabbix Traffic

 In this article by  Rihards Olups , the author of the book  Zabbix Network Monitoring, Second Edition , we will learn how communication between Zabbix components is done in plaintext by default. In many environments, this is not a significant problem, but monitoring over the Internet in plaintext is likely not a good approach. In previous Zabbix versions, there was no built-in solution, and various VPN, stunnel, and SSH port forwarding solutions were used. Such solutions can still be used, but version 3.0 is the first Zabbix version to provide built-in encryption. In this article, we will set up several of the components to use different methods of encryption.

Up and Running with Views

In this article by Gregg Marshall , the author of Mastering Drupal 8 Views , we will get introduced to the world of Views in Drupal. Drupal 8 was released November 19, 2015, after almost 5 years of development by over 3,000 members of the Drupal community. Drupal 8 is the largest refactoring in the project's history. One of the most important changes in Drupal 8 was the inclusion of the most popular contributed module, Views . Similar to including CCK in Drupal 7, adding Views to Drupal 8 influenced how Drupal operates as many of the administration pages, such as the content list page, are now Views that can be modified or extended by site builders. Every site builder needs to master the Views module to really take advantage of Drupal's content structuring capabilities by giving site builders the ability to create lists of content formatted in many different ways. A single piece of content can be used for different displays, and all the content in each View is dynamically created when a visitor comes to a page. It was the only contributed module included in the Acquia Site Builder certification examination for Drupal 7. In this article, we will discuss the following topics: Looking at the Views administration page Reviewing the general Views module settings Modifying one of the views from Drupal core to create a specialized administrative page

What is Flux?

In this article by Adam Boduch , author of Flux Architecture covers the basic idea of Flux . Flux is supposed to be this great new way of building complex user interfaces that scale well. At least that's the general messaging around Flux, if you're only skimming the Internet literature. But, how do we define this great new way of building user interfaces ? What makes it superior to other more established frontend architectures? The aim of this article is to cut through the sales bullet points and explicitly spell out what Flux is, and what it isn't, by looking at the patterns that Flux provides. And since Flux isn't a software package in the traditional sense, we'll go over the conceptual problems that we're trying to solve with Flux. Finally, we'll close the article by walking through the core components found in any Flux architecture, and we'll install the Flux npm package and write a hello world Flux application right away. Let's get started.

Modular Programming in ECMAScript 6

Modular programming is one of the most important and frequently used software design techniques. Unfortunately, JavaScript didn't support modules natively that lead JavaScript programmers to use alternative techniques to achieve modular programming in JavaScript. But now, ES6 brings modules into JavaScript officially. This article is all about how to create and import JavaScript modules. In this article, we will first learn how the modules were created earlier, and then we will jump to the new built-in module system that was introduced in ES6, known as the ES6 modules. In this article, we'll cover: What is modular programming? The benefits of modular programming The basics of IIFE modules, AMD, UMD, and CommonJS Creating and importing the ES6 modules The basics of the Modular Loader Creating a basic JavaScript library using modules

Using NoSQL Databases

In this article by Valentin Bojinov , the author of the book  RESTful Web API Design with Node.JS, Second Edition , we willlook for a better storage solution, which can be scalable easily, together with our REST-enabled application. These days, the so-called NoSQL databases are used heavily in cloud environments. They have the following advantages over traditional transactional SQL databases: They are schemaless ; that is, they work with object representations rather than store the object state in one or several tables, depending on their complexity. They are extendable , because they store an actual object. Data evolution is supported implicitly, so all you need to do is just call the operation that stores the object. They are designed to be highly distributed and scalable . Nearly all modern NoSQL solutions out there support clustering and can scale further, along with the load of your application. Additionally, most of them have REST-enabled interfaces over HTTP, which eases their usage over a load balancer in high-availability scenarios. Classical database drivers are usually not available for traditional client-side languages, such as JavaScript, because they require native libraries or drivers. However, the idea of NoSQL originated from using document data stores. Thus, most of them support the JSON format, which is native to JavaScript. Last but not least, most NoSQL solutions are open source and are available for free, with all the benefits that open source projects offer: community, examples, and freedom! In this article, we will take a look at two NoSQL solutions: LevelDB and MongoDB. We will see how to design and test our database models, and finally, we will take a brief look at the content delivery network ( CDN ) infrastructures

Introducing and Setting Up GO

In this article by Nathan Kozyra , the author of the book Learning Go Web Development , one of the most common things you'll hear being said is that it's a systems language. Indeed, one of the earlier descriptions of Go, by the Go team itself, was that the language was built to be a modern systems language. It was constructed to combine the speed and the power of languages, such as C with the syntactical elegance and thrift of modern interpreted languages, such as Python. You can see that the goal is realized when you look at just a few snippets of the Go code. The Go FAQ, on why Go was created: "Go was born out of frustration with existing languages and environments for systems programming." Perhaps the largest part of the present-day systems programming comprises of designing backend servers. Obviously, the Web comprises a huge, but not exclusive, percentage of that world. Go hasn't been considered a web language until recently. Unsurprisingly, it took a few years of developers dabbling, experimenting, and finally embracing the language to start taking it to new avenues. While Go is web-ready out of the box, it lacks a lot of the critical frameworks and tools people so often take for granted with web development now. As the community around Go grew, the scaffolding began to manifest in a lot of new and exciting ways. Combined with existing ancillary tools, Go is now a wholly viable option for end-to-end web development. However, lets get back to the primary question: Why Go? To be fair, it's not right for every web project, but any application that can benefit from a high-performance, secure web-serving out of the box with the added benefits of a beautiful concurrency model would make for a good candidate. We're not going to deal with a lot of low-level aspects of the Go language. For example, we assume that you're familiar with variable and constant declaration. We assume that you understand control structures. In this article, we will cover the following topics: Installing Go Structuring a project Importing packages

Advanced Shell Topics

In this article by Thomas Bitterman , the author of the book Mastering IPython 4.0 , we will look at the tools the IPython interactive shell provides. With the split of the Jupyter and IPython projects, the command line provided by IPython will gain importance. This article covers the following topics: What is IPython? Installing IPython Starting out with the terminal IPython beyond Python Magic commands

Getting Started with Apache Hadoop and Apache Spark

In this article by Venkat Ankam , author of the book, Big Data Analytics with Spark and Hadoop , we will understand the features of Hadoop and Spark and how we can combine them.

Features of Sitecore

In this article by Yogesh Patel, the author of the book, Sitecore Cookbook for Developers , we will discuss about the importance of Sitecore and its good features.

Mobile Forensics and Its Challanges

In this article by Heather Mahalik and Rohit Tamma , authors of the book Practical Mobile Forensics, Second Edition , we will cover the following topics: Introduction to mobile forensics Challenges in mobile forensics

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