David CartwrightDave Cartwright has worked in the IT industry for over 20 years, specialising in corporate infrastructure and security, and has been a Linux user since the 1990s; he's presently an IT manager for a telecoms company. He writes for various IT industry ublications, and is a former columnist for Linux Format magazine. Dave is a Fellow of the British Computer Society, a Chartered Engineer and a Chartered Information Technology Professional. Read More Read Less