De-Lite Game Released to iTunes App Store and Android Marketplace

The game “De-Lite” is now available in iTunes App Store and the Android Market The Basics Flip the switches to turn off the lights – it is harder than you think! The goal of De-Lite is to turn off all … Continue reading

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How to get a Free and Valid SSL Certificate

Why do you need a SSL certificate? Short answer: to enable encryption! For example, if you are running a web-site and *any* part of it requires authentication, then you should enable SSL. For the whole site. No, you can’t just … Continue reading

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Storing Passwords Securely on your Mobile Device

I have a lot of accounts, and I’m willing to bet that you do as well. Banking websites, social websites, work accounts, wordpress accounts, DNS registrars, the list goes on and on. Each of these accounts typically requires a password, … Continue reading

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IPMI SOL – Inexpensive Remote Console

I used to think that every server needed to have something like a DRAC (Dell Remote Access Card) or IBM RSA (IBM Remote System Administration) to be really manageable remotely. But the problem is that they are expensive and they … Continue reading

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Process Substitution – Subshells that Rock

If you are new to the world of *nix operating systems, you might still be wrapping your head around the concept of pipes. But if you spend any time at the command line, it won’t be long before you are … Continue reading

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Common Cron Mistakes

I’ve been working with personal computers for awhile. I’m not quite from the punch card era, but I do fondly remember saving my prime number sieve program, written in basic, to an audio cassette attached to a Commodore Vic-20. Somewhere … Continue reading

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Alternative Dice

Here is an fun proof I saw during a stay at MSRI (Mathematical Sciences Research Institute) – unfortunately, I can not remember the reference (or none was given). If you happen to know the originator of this work, please let … Continue reading

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Project Hydra: the USB Multiheaded Monster

“You have a bunch of servers to administer, not enough consoles and a small budget. Roll your own serial console server with USB.” This is a paper I wrote for Linux Journal after playing around with using USBserial adaptors to … Continue reading

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Pizza Contest 2001

In the spring of 2001 Kara and I held a pizza contest in our new home. Here are the results… Which pizzas competed? The nine contestants were Papa’s Pizza, Papa John’s, Izzy’s, The Headliner, Pizza Pipeline, Woodstock’s, Pizza Hut, American … Continue reading

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