Category: Howto 2010 How to install ThinkUp on NearlyFreeSpeech Sep 03 2010 Getting started with Git Mar 18 2010 2008 How to securely delete files before returning a computer Dec 08 2008 Reduce your context switch delay Jun 25 2008 How to use ssh to securely access the net Mar 14 2008 How to extract PlanetLab geographic data Feb 23 2008