A highly scalable WordPress self-hosting that is not a burden on your wallet
How to host a scalable WordPress setup yourself with W3 Total Cache, Varnish and Amazon Cloudfront. united-coders.com is not that big. We’re currently getting in between 500 and 1000 unique visits a...
View ArticleManually concatenating two wave files
Even though there are libraries and tools to concatenate two canonical wave files, here is how you can do it manually, just in case you need to or are interested. Take one of the files and add the...
View ArticleCode Jam – Candy Splitting
With the Code Jam 2013 qualification starting soon, I decided to look at one of the past rounds. With 2011 I found one, in which I did not put too much time and effort in. Candy Splitting. If you’re...
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A scalable, affordable WordPress hosting, lessons learned
After my previous post “A highly scalable WordPress self-hosting that is not a burden on your wallet”, I had a few month to tweak the system and experiment. Additionally, we shifted the technologies...
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All you need to know about Raspberry Pi colocation offers
Here in Europe I’ve seen a few Raspberry Pi colocation offers lately. It all started out with edis appearing on hackernews, telling they’re offering free colocation. Of course the offer was sold out by...
View ArticleGenerating random numbers and strings in Java
In almost every project there is a need to generate some random strings or numbers. What I see very often is that people use some custom implementation around Math.random() and other methods capable of...
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DIY: automated encrypted windows server backup
creating save backupsImage by -JvL- from Flickr Creative Commons. There are a lot of windows server backup tools, but one is already built in: Windows Server Backup It’s not the most sophisticated...
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google code jam 2014 – magic trick
image by Steven Depolo Even though I could not participate in this years google code jam qualification round, I want to provide you my solution for magic trick. I actually failed to implement it...
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Infinite House of Pancakes – code jam 2015
by Michael Stern The Infinite House of Pancakes seems to be rather easy to solve at first glance. I did pick this puzzle right after solving Standing Ovation, thinking it should be only slightly...
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Raspberry Pi Supply Switch, start and shut down your Pi like your PC
As you might have guessed, there is always at least one Raspberry Pi doing something at my place. Two are already in datacenters providing services. One over at edis.at in Austria and one at...
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