Quickly add Amazon Cloudfront as a CDN

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Right now I’m working on an application which is experiencing lots of interest – and therefore lots of load! We needed to look at ways of trying to bring down the pressure on the servers, and decided to use a CDN (Content Delivery Network) for our image files. It was surprisingly painless to implement once I got into it so here it is in case it’s helpful.
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WebGL With Three.js – Lesson 6

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Today we continue our WebGL lessons for those who study it and want to enhance their knowledge. In today’s lesson we will look at the load process of ready three-dimensional objects. There are many websites where you can download these models, and moreover, if you have an editor of three-dimensional objects (like 3D Max, Maya, or even Blender), you can create your own models. There are also…

Leveraging optical transport to create multi-site datacenter services

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The primary objective for networking for decades has been to provide connectivity between resources. In the early days, mere connectivity was valuable enough to make it a service by itself. Then the game shifted to providing bandwidth – essentially more connectivity. Since that time, we have tried different variations of the connectivity-as-a-service model: clean pipes for more secure…

A Rubik’s cube implementation in Three.js

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 In 2003, I took the time to put together a page that explains how to solve the Rubik’s cube with a set of formulas that are easy to memorize. The idea was not necessarily to solve the cube quickly (it takes about 50-60 seconds to solve the cube with this approach) but to make it easy for anyone to beat the cube with little effort, as opposed to the hundreds of formulas that speed cubists…

Is agile transformation at risk?

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This week I launched agilepatterns.org to help meet the challenge of enterprise scaling. In this posting I set out the rationale for doing so in terms of recent high-profile IT failures, and the need for genuine sponsorship for deep organizational change.
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This week I launched agilepatterns.org to help meet the challenge of enterprise…

Geek Reading July 11, 2014

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I have talked about human filters and my plan for digital curation. These items are the fruits of those ideas, the items I deemed worthy from my daily reading. These items are a combination of tech business news, development news and programming tools and techniques. You will note that some of the formatting has changed, and that is due to the change in my process.
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Learn How to Build a Complete HTML5/PhoneGap App with the Appery.io in Atlanta

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I will be in Atlanta July 16 showing how to build a complete HTML5/PhoneGap App with Appery.io. The event is sponsored by Atlanta HTML5 User Group and Atlanta Mobile Developers Group. Hope to see you there.
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I will be in Atlanta July 16 showing how to build a complete HTML5/PhoneGap App with Appery.io. The event is sponsored by…

Kindle for offline html docs reading

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Summer is here. While laying on the beach, you can use the time to learn new programming language or get some overview on the framework of your interest. Possibly the things you had no time left for over the year.

I bought myself Kindle, my beach holiday is just a day away, so it’s time to fill the reader with content.
Goal

Get an online html docs to Kindle for offline reading.
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Mount WSO2 products to a remote WSO2 Governance Registry instance(MsSQL 2012)

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In this post we are going to mount wso2 products into a remote
governance registry. In the default scenario wso2 governance registry is
pointed to a local h2 database.

First lets configure the governance registry instance to point to the MsSQL data source.
Download WSO2 Governance Registry product and extract the product.Go to /repository/conf/datasources  and open…

Docker meets Vagrant (registry-less mode)

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In very common web application I’m using MongoDB as a database, memcached to store session data and caches, ActiveMQ for messaging and Solr for full text search. 
And every time there is a very common team is working on a very common app. And every developer in my team is changing stuff in databases. And every QA wants to have they own junk in databases. Finally I need up to 7 different…

Is TDD Dead Or Alive?

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This blog post is for those of you who are unaware that there is a major debate in contemporary software development happening now, today. People have been wondering about the value of Test-Driven Development (TDD) for a long while, but it was not until David Heinemeier Hansson of 37 Signals  posted a blog article on St.
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Using IF Statements In Sass

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In preview tutorials we were investigating some of the features and benefits you get with using Sass to generate your CSS files.

If you haven’t tried Sass then I advise you look into using it in your next project, to get information on what’s involved with Sass view my article on Getting Started with Sass.
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In this article we are…

View Only Headers with Curl

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When working with curl, it can give lots of excellent and detailed information, but sometimes it is too much! Today I’m fiddling with the caching headers on a client’s application, so I’m only interested in seeing the headers and not the body of the response. Making a HEAD request changes the output I get, so I really do want to GET and then only see the headers.
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Explicitly-defined failure domains in the datacenter

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While the bulk of the networking industry’s focus is on CapEx and automation, the two major trends driving changes in these areas will have a potentially greater impact on that which matters most: availability. In fact, despite that datacenter purchasing decisions skew towards CapEx, the number one requirement for most datacenters is uptime.

If availability is so important, why is it not the…

Why “Hacker?”

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As a self-taught programmer, the most inspirational book for me in my early years, what really made me want to be a coder and never look back, was Steven Levy’s Hackers: Heroes of the Computer Revolution.
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As a self-taught programmer, the most inspirational book for me in my early years, what really made me want to be a coder and…

Extracting Parts of Git Repository and Keeping the History

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At some point, a software project will grow beyond its original scope. In many cases, some portions of the project become their own mini world. For maintenance purposes, it is often beneficial to separate them into their own projects. Furthermore, the commit history for the extracted project should not be lost. With Git, this can be achieved using git-subtree.
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Network cost and complexity: As simple as changing the y-intercept?

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In a previous post, I wrote about the incremental nature of innovation, particularly in the networking space. My point was that innovation (both from a product and a deployment perspective) occurs from a frame of reference. Understanding that foundation is critical to determining strategies, especially around go-to-market and adoption.
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