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The GNS3 orchestra

by "RedNectar" Chris Welsh | October 2013 | Networking & Telephony Open Source

The conductor of the orchestra is of course the GNS3 GUI, who wields its Dynagen-like baton — the GNS3 management console, to control the three main sections in the orchestra: Dynamips , qemuwrapper , and vboxwrapper. Let "RedNectar" Chris Welsh, the author of GNS3 Network Simulation Guide, take you through a complex suite with a variety of objects: Cisco routers, generic switches, Qemu devices, and VirtualBox devices.

Read The GNS3 orchestra in full

Starting an instance

by Alexander Papaspyrou | October 2013 | Open Source

This article by Alexander Papaspyrou, the author of Instant Google Compute Engine provides you with all the information you need to run your large-scale computing workloads on Linux virtual machines hosted on Google's infrastructure. You will also get to know the basic building blocks of Google Compute Engine (GCE), get started with creating and running your infrastructure in the Cloud, and learn about the different concepts that make up a well-performing GCE system.

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Understanding WebSockets and Server-sent Events in Detail

by Bhakti Mehta Masoud Kalali | October 2013 | Enterprise Articles Web Services Java

In this article by Masoud Kalali and Bhakti Mehta, the authors of Developing RESTful Services with JAX-RS 2.0, WebSockets, and JSON, we will cover the following:

  • Encoders and decoders in Java API for WebSockets
  • Java WebSockets Client API
  • Sending different types of data such as Blob and Binary using Java API for WebSockets
  • Security and WebSockets
  • Best practices for WebSockets-based applications
  • Developing Server-sent Events clients using Jersey API
  • Best practices for Server-sent Events
Read Understanding WebSockets and Server-sent Events in Detail in full

Windows Phone 8: Principles for UI/UX and Bindings

by Tomasz Szostak | October 2013 | Open Source

In this article by Tomasz Szostak, author of Windows Phone 8 Application Development Essentials, we will cover:

  • Principles for UI/UX
  • Bindings
Read Windows Phone 8: Principles for UI/UX and Bindings in full

Getting Started with Code::Blocks

by Biplab Kumar Modak | October 2013 | Open Source

In this article by Biplab Kumar Modak, the author of C++ Application Development with Code::Blocks, we'll download Code::Blocks, install and learn more about it.

Read Getting Started with Code::Blocks in full

How to use PowerShell Web Access to manage Windows Server

by Vinith Menon | October 2013 | Enterprise Articles Networking & Telephony

In this article by Vinith Menon, the author of Instant Windows PowerShell, we will learn how to to use PowerShell Web Access to manage your Windows Server Environment anywhere, anytime, and on any device. PowerShell Web Access, a web-based Windows PowerShell console, and Windows PowerShell commands and scripts can be run from a Windows PowerShell console in a web browser; with no Windows PowerShell, remote management software, or browser plug-in installation becomes necessary on the client device.

Read How to use PowerShell Web Access to manage Windows Server in full

Getting Started with JSON

by Sai Srinivas Sriparasa | October 2013 | Open Source Web Development

This article by Sai Srinivas Sriparasa, author of JavaScript and JSON Essentials, shows the importance of JSON or JavaScript Object Notation and also explains why it is a very popular data interchange format.

Read Getting Started with JSON in full

Low-Level Index Control

by Marek Rogoziński Rafał Kuć | October 2013 | Open Source

This article, by Rafał Kuć and Marek Rogoziński the authors of book Mastering ElasticSearch we will have covered the following topics:

  • How to use different scoring formulae and what they can bring
  • How to use different posting formats and what they can bring
  • How to handle Near Real Time searching, real-time GET, and what searcher reopening means
  • Looking deeper into multilingual data handling
  • Configuring transaction log to our needs and see how it affects our deployments
  • Segments merging, different merge policies, and merge scheduling
Read Low-Level Index Control in full

Getting into the Store

by Michael Quandt | October 2013 | Games Open Source

In this article by Michael Quandt, author of Learning Windows 8 Game Development, we will learn the following:

  • Getting a Windows Store account
  • Creating your game/reserving a name
  • Windows Application Certification Kit
  • Creating packages for the store
  • Screenshots and icons
  • Game ratings
  • Submitting to the store
  • Common issues with certification
Read Getting into the Store in full

Availability Management

by Konstantin Kuminsky | October 2013 | Enterprise Articles

In this article written by Konstantin Kuminsky, the author of the book Implementing VMware vCenter Server, describes the features in vCenter that allow you to reduce downtime and make sure your services are available for end users most of the time. The features are vSphere High Availability, Fault Tolerance including host and VM monitoring, datastore heartbeating, and Dynamic Resource Scheduler (DRS).

We will discuss the different aspects of vSphere's High Availability (HA) and Fault Tolerance (FT), including host and VM monitoring, datastore heartbeating, and Distributed Resource Scheduler (DRS).

In this article we will cover the following topics:

  • Reducing planned and unplanned downtime
  • Creating a vSphere HA cluster
  • HA security, logging, and admission control
  • Preparing hosts and configuring FT
Read Availability Management in full

The solvers – these great unknown

by Luca Zamboni | October 2013 | Enterprise Articles

This article written by Luca Zamboni, the author of Getting Started with Simulink describes how solvers are used by Simulink to run the simulation. It explains how every solver perform the simulation by advancing one time step and computing the new outputs starting from the previous state(s) of the system until the end of the simulation time. The initial system state must be fully defined.

The appropriate solver for a model can be chosen by defining these characteristics:

  • Time step size, which can be fixed or variable
  • Presence of continuous states in the system
  • Stiffness of the system
Read The solvers – these great unknown in full

Advanced System Management

by Rich Pinkall Pollei | October 2013 | Open Source

In this article by Rich Pinkall Pollei, the author of the book Debian 7: System Administration Best Practices, we'll cover briefly several advanced administration subjects. Configuration administration will be covered, and we will briefly look at cluster management. Finally, we will look at one of the most useful administration tools for any Linux system, Webmin.

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Designing Sample Applications and Creating Reports

by Mahmoud Elkoush | October 2013 | Enterprise Articles

This article by Mahmoud Elkoush, author of Reporting with Visual Studio and Crystal Reports, describes how to use Microsoft Visual Studio 2012. We will create our application, and by studying the working of this application, we will learn the features of Visual Studio. We will also design our interface and validate our data. By the end of this article, we will have the final design of our application.

In this article, we will cover the following topics:

  • Creating a new application
  • Adding controls to the form
  • Validating form data
  • Sketching our reports on paper
Read Designing Sample Applications and Creating Reports in full

Social-Engineer Toolkit

by Monika Agarwal | October 2013 | Cookbooks Networking & Telephony Open Source

In this article by Monika Agarwal, the author of the book Metasploit Penetration Testing Cookbook Second Edition, we will cover:

  • Getting started with the Social-Engineer Toolkit(SET)
  • Working with the SET config file
  • Working with the spear-phishing attack vector
  • Website attack vectors
  • Working with the multi-attack web method
  • Infectious media generator
Read Social-Engineer Toolkit in full

Scratching the Surface of Zend Framework 2

by Christopher Valles | October 2013 | RAW Open Source PHP Web Development

In this article by Christopher Valles, the author of Zend Framework 2 Application Development, discusses the basic elements of Zend Framework 2. You will get an in-depth look at the components involved on a simple request/response operation and this knowledge will be used and expanded on throughout the article. After that we will review how the welcome page is loaded.

By the end of this article, you will know the lifecycle of a request and how to interact with the different components of the framework to produce some output.

Read Scratching the Surface of Zend Framework 2 in full
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