General

Raspberry Pi Automated USB Eraser

Ever needed to securely wipe a USB drive with minimum effort? How about doing it every day? This project hoped to simplify the process. All you need to do is plug in a usb drive and the process starts automatically. A…

Upgrading turnkey redmine from 1.3.0.stable.8673 to 2.0.4.stable

First, upgrade rails. This will take some time, go and make a tea/coffee. #gem install rails #cd /var/www #mv railsapp railsapp-old #hg clone --updaterev 2.0-stable https://bitbucket.org/redmine/redmine-all…

ZFS vs 7Zip for virtual disk backups

This details a real world example of the benefits of ZFS dedupe.My backup disk contains 2.4TB of 7z files. Each file is a website backup, a database backup or a 7z backup of an entire virtual machine / server. Many of…

RaspberryPi Power Management with a PIR Sensor

This is a simple guide to setting up a PIR sensor with a raspberryPI to send a wake-on-lan packet to one or more computers. The idea being that as I walk into my office, everything boots up or comes out of hibernation…

Earth's processing capacity in my lap

I wondered how long one needs to wait before owning the current world's computer processing power for under $1000. A few studies have been done to measure the world's processing power. In 2007 the entire world's…

How I complied with the EU Cookie Law

I am a keen believer in law. It stops me being killed for my wallet while walking to the shop, keeps my house from being broken into while walking to said shop and my family safe. So when a new law is passed - I do…