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Introduction to Docker

In this article by Rajdeep Dua , the author of the book Learning Docker Networking , we will look at an introduction of Docker networking and its components. Docker is a lightweight containerization technology that has gathered enormous interest in recent years. It neatly bundles various Linux kernel features and services, such as namespaces, cgroups, SELinux, and AppArmor profiles, over union filesystems such as AUFS and BTRFS in order to make modular images. These images provide a highly configurable virtualized environment for applications and follow a write once, run anywhere workflow. Applications can be as simple as running a process to a highly scalable and distributed one. Therefore, there is a need for powerful networking elements that can support various complex use cases.

Elucidating the Game-changing Phenomenon of the Docker-inspired Containerization Paradigm

In this article by Pethuru Raj , Jeeva S. Chelladhurai , Vinod Singh , authors of the book Learning Docker , we will cover the reason behind the Docker platform's popularity. Docker is an open platform for developers and system administrators of distributed applications. Building and managing distributed applications is beset with a variety of challenges, especially in the context of pervasive cloud environments. Docker brings forth a bevy of automation through the widely leveraged abstraction technique in successfully enabling distributed applications. The prime point is that the much-talked simplicity is being easily achieved through the Docker platform. With just a one-line command, you can install any application. For example, popular applications and platforms, such as WordPress, MySQL, Nginx, and Memcache, can all be installed and configured with just one command. Software and platform vendors are systematically containerizing their software packages to be readily found, subscribed, and used by many. Performing changes on applications and putting the updated and upgraded images in the repository is made easier. That's the real and tectonic shift brought in by the Docker-sponsored containerization movement. There are other advantages with containerization as well, and they are explained in the subsequent sections. (For more resources related to this topic, see here .)

Payment Processing Workflow

In this article by Ernest Bruce , author of the book,  Apply Pay Essentials , the author talks about actors and operations in the payment processing workflow. After the user authorizes the payment request, the user app , the payment gateway , and the order processing web app team up to securely deliver the payment information to the issuing bank, to transfer the funds form the user's account to the acquiring bank, and to inform the user of the transaction status (approved or declined).

CSS Properties – Part 1

In this article written by Joshua Johanan , Talha Khan and Ricardo Zea , authors of the book  Web Developer's Reference Guide , the authors wants to state that "CSS properties are characteristics of an element in a markup language (HTML, SVG, XML, and so on) that control their style and/or presentation. These characteristics are part of a constantly evolving standard from the W3C."

EMC Storage connectivity of Cisco UCS B-Series server

In this article by Victor Wu , the author of the book  Cisco UCS Cookbook , we will learn the concept of how to set up the EMC CLARiiON Storage connectivity of Cisco UCS B-Series server.

Elastic Load Balancing

In this article by Yohan Wadia, the author of the book  AWS Administration – The Definitive Guide , we are going continue where we last dropped off and introduce an amazing and awesome concept called as Auto Scaling ! AWS has been one of the first Public Cloud providers to provide this feature and really it is something that you must try out and use in your environments! This chapter will teach you the basics of Auto Scaling, its concepts and terminologies, and even how to create an auto scaled environment using AWS. It will also cover Amazon Elastic Load Balancers and how you can use them in conjuncture with Auto Scaling to manage your applications more effectively! So without wasting any more time, let's first get started by understanding what Auto Scaling is and how it actually works!

Working with a Webcam and Pi Camera

In this article by Ashwin Pajankar and Arush Kakkar, the author of the book  Raspberry Pi By Example we will learn how to use different types and uses of cameras with our Pi. Let's take a look at the topics we will study and implement in this article: Working with a webcam Crontab Timelapse using a webcam Webcam video recording and playback Pi Camera and Pi NOIR comparison Timelapse using Pi Camera The PiCamera module in Python

Running Simpletest and PHPUnit

In this article by Matt Glaman , the author of the book  Drupal 8 Development Cookbook . This article will kick off with an introduction to getting a Drupal 8 site installed and running.

Configuring Extra Features

In this article by Piotr J Kula , the author of the book  Raspberry Pi 2 Server Essentials , you will learn how to keep the Pi up-to-date and use the extra features of the GPU. There are some extra features on the Broadcom chip that can be used out of box or activated using extra licenses that can be purchased. Many of these features are undocumented and found by developers or hobbyists working on various projects for the Pi.

Testing in Node and Hapi

In this article by John Brett , the author of the book Getting Started with Hapi.js , we are going to explore the topic of testing in node and hapi. We will look at what is involved in writing a simple test using hapi's test runner, lab, how to test hapi applications, techniques to make testing easier, and finally how to achieve the all-important 100% code coverage.

The Alfresco Platform

In this article by  Jeffrey T. Potts  and  Snehal K Shah , authors of  Alfresco Developer Guide, Second Edition , we will discuss the Alfresco architecture.

Analyzing Data Packets

In this article by Samir Datt , the author of the book Learning Network Forensics , you will learn to get your hands dirty by actually capturing and analyzing network traffic. We will learn how to use different software tools to capture and analyze network traffic with real-world scenarios of accessing data over the Internet and the resultant network capture. The article will cover the following topics: Packet sniffing and analysis using NetworkMiner Case study – sniffing out an insider

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