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Installation and Upgrade

In this article by Robert Hedblom , author of the book  Microsoft System Center Data Protection Manager Cookbook , we will cover the installation and upgrade for SQL Server on DPM server. We will also understand the prerequisites to start your upgrade process. You will learn how to: Install a SQL Server locally on the DPM server Prepare a remote SQL Server for DPMDB

Symmetric Messages and Asynchronous Messages (Part 1)

In this article by Kingston Smiler. S , author of the book  OpenFlow Cookbook describes the steps involved in sending and processing symmetric messages and asynchronous messages in the switch and contains the following recipes: Sending and processing a hello message Sending and processing an echo request and a reply message Sending and processing an error message Sending and processing an experimenter message Handling a Get Asynchronous Configuration message from the controller, which is used to fetch a list of asynchronous events that will be sent from the switch Sending a Packet-In message to the controller Sending a Flow-removed message to the controller Sending a port-status message to the controller Sending a controller-role status message to the controller Sending a table-status message to the controller Sending a request-forward message to the controller Handling a packet-out message from the controller Handling a barrier-message from the controller

Writing a Fully Native Application

In this article written by Sylvain Ratabouil , author of Android NDK Beginner`s Guide - Second Edition , we have breached Android NDK's surface using JNI. But there is much more to find inside! The NDK includes its own set of specific features, one of them being Native Activities . Native activities allow creating applications based only on native code, without a single line of Java. No more JNI! No more references! No more Java!

Ensuring Five-star Rating in the MarketPlace

In this article written by Feroz Pearl Louis and Gaurav Gupta , author of the book Mastering Mobile Test Automation , we will learn that the star rating system on mobile marketplaces, such as Google Play and Application Store, is a source of positive as well as negative feedback for the applications deployed by any organization. This system is used to measure various aspects of the application, such as like functionality, usability, and is a way to quantify the all-elusive measurement-defying factor that organizations yearn to measure called "user experience", besides the obvious ones, such as the appeal and aesthetics of an application's graphical user interface ( GUI ). If an organization does not spend time in testing the functionality adequately, then it may suffer the consequences and lose the market share to competitors. The challenge to enable different channels such as web applications through mobile browsers, as well as providing different native or hybrid applications to service the customers as per their preferences, often leads to a situation where organizations have to develop both a web version and a hybrid version of the application.

Getting Started

In this article by Raghuram Bharathan , author of the book  Apache Maven Cookbook , we will cover the following basic tasks related to getting started with Apache Maven: Installing Maven on Microsoft Windows Installing Maven on Mac OS X Installing Maven on Linux

Solving Some Not-so-common vCenter Issues

In this article by Chuck Mills , author of the book  vCenter Troubleshooting , we will review some of the not-so-common vCenter issues that administrators could face while they work with the vSphere environment. The article will cover the following issues and provide the solutions: The vCenter inventory shows no objects after you log in You get the VPXD must be stopped to perform this operation message Removing the vCenter plugins when they are no longer needed

Getting started with Codeception

In this article by Matteo Pescarin , the author of  Learning Yii Testing , we will get introduced to Codeception. Not everyone has been exposed to testing. The ones who actually have are aware of the quirks and limitations of the testing tools they've used. Some might be more efficient than others, and in either case, you had to rely on the situation that was presented to you: legacy code, hard to test architectures, no automation, no support whatsoever on the tools, and other setup problems, just to name a few. Only certain companies, because they have either the right skillsets or the budget, invest in testing, but most of them don't have the capacity to see beyond the point that quality assurance is important. Getting the testing infrastructure and tools in place is the immediate step following getting developers to be responsible for their own code and to test it.

Hadoop Monitoring and its aspects

In this article by Gurmukh Singh , the author of the book  Monitoring Hadoop , tells us the importance of monitoring Hadoop and its importance. It also explains various other concepts of Hadoop, such as its architecture, Ganglia (a tool used to monitor Hadoop), and so on. In any enterprise, how big or small it could be, it is very important to monitor the health of all its components like servers, network devices, databases, and many more and make sure things are working as intended. Monitoring is a critical part for any business dependent upon infrastructure, by giving signals to enable necessary actions incase of any failures. Monitoring can be very complex with many components and configurations in a real production environment. There might be different security zones; different ways in which servers are setup or a same database might be used in many different ways with servers listening on various service ports. Before diving into setting up Monitoring and logging for Hadoop, it is very important to understand the basics of monitoring, how it works and some commonly used tools in the market. In Hadoop, we can do monitoring of the resources, services and also do metrics collection of various Hadoop counters. There are many tools available in the market and one of them is Nagios, which is widely used. Nagios is a powerful monitoring system that provides you with instant awareness of your organization's mission-critical IT infrastructure. By using Nagios, you can: Plan release cycle and rollouts, before things get outdated Early detection, before it causes an outage Have automation and a better response across the organization

Firebase

In this article by Manoj Waikar , author of the book  Data-oriented Development with AngularJS , we will learn a brief description about various types of persistence mechanisms, local versus hosted databases, what Firebase is, why to use it, and different use cases where Firebase can be useful. We can write web applications by using the frameworks of our choice—be it server-side MVC frameworks, client-side MVC frameworks, or some combination of these. We can also use a persistence store (a database) of our choice—be it an RDBMS or a more modern NoSQL store. However, making our applications real time (meaning, if you are viewing a page and data related to that page gets updated, then the page should be updated or at least you should get a notification to refresh the page) is not a trivial task and we have to start thinking about push notifications and what not. This does not happen with Firebase.

Git Teaches – Great Tools Don't Make Great Craftsmen

This article is written by Ferdinando Santacroce , author of the book, Git Essentials

Saying Hello to Unity and Android

Welcome to the wonderful world of mobile game development. Whether you are still looking for the right development kit or have already chosen one, this article will be very important. In this article by Tom Finnegan , the author of Learning Unity Android Game Development , we explore the various features that come with choosing Unity as your development environment and Android as the target platform. Through comparison with major competitors, it is discovered why Unity and Android stand at the top of the pile. Following this, we will examine how Unity and Android work together. Finally, the development environment will be set up and we will create a simple Hello World application to test whether everything is set up correctly. In this article, we will cover the following topics: Major Unity features Major Android features Unity licensing options Installing the JDK Installing the Android software development kit (SDK) Installing Unity 3D Installing Unity Remote

Extracting data physically with dd

 In this article by Rohit Tamm a and Donnie Tindall , authors of the book  Learning Android Forensics , we will cover physical data extraction using free and open source tools wherever possible. The majority of the material covered in this article will use the ADB methods.

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