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August 2008
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How do I erase a hard drive?

dd is a handy tool used for making copys. It can also be used to quite securely wipe harddrives:

for (( i = 0;i<10;i++ )); do dd if=/dev/random of=dev/hda && dd if=dev/zero of=/dev/hda done

This will overwrite your entire hard drive (in this case seen as hda by Linux) with random information ten time

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How to install java on Ubuntu

This small guide shows how to install the original Sun Java 2 Platform Standard Edition 5.0 JRE (Java Runtime Environment) and JDK (Java Developer Kit) on Ubuntu.

The original Sun Java 2 is available in the ‘multiverse’ section of the Ubuntu repositories. To enable this section first add the multiverse repository to the apt sources […]