This guide explains how you can do a live migration of an LVM-based virtual machine (domU) from one Xen host to the other. I will use iSCSI to provide shared storage for the virtual machines in this tutorial. Both Xen hosts and the iSCSI target are running on Debian Lenny in this article.
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Security Revealed
Archive for April, 2009
Battle cars
Posted in April 30th, 2009
There’s a new show coming to the Discovery Chanel called Weaponizers. Brought to you by the same people who brought you Mythbusters, this show centers around weaponizing and remote controlling cars. They’ll be building them with several different types of competition in mind, including defense of an object and all out warfare. You’ll note in [...]
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Working with CSV Files from the Command Line
Posted in April 30th, 2009
How to extract and manipulate CSV data from the command line.
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Face tracking in Opera
Posted in April 30th, 2009
Inspired by this year’s april fools day joke from Opera, [Jason] has made facial gesture recognition actually work. While this may seem like a silly project, it could seriously help some people out. This could be a great accessibility tool for people with motor control limitations.He states that it has some problems right now, most [...]
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Creating A Fully Encrypted Para-Virtualised Xen Guest System Using Debian Lenny
Posted in April 30th, 2009
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Creating A Fully Encrypted Para-Virtualised Xen Guest System Using Debian Lenny
This document explains how to set up a fully encrypted
para-virtualized XEN instance. In this howto, the host system is
running Debian Etch, while the guest system to be installed will be
using Debian Lenny. If you are concerned about your privacy, you might want to
consider using hard disk encryption to protect your valuable
private data from spying eyes. Usually, the easiest way would be to
use your distribution’s installer to set up a fully encrypted
system; I think most recent Linux distributions support this.
However, when you are using XEN to provide virtualization, there
are situations where you might not want to encrypt your whole
computer with all guest instances, but instead only encrypt one OS
instance. This howto will deal with exactly this situation. It
assumes that the XEN host system is already up and running.
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Facebook Security Questions
Posted in April 30th, 2009
Facebook has excellent granular privacy controls.
But here’s the thing…
What’s the deal with Facebook’s Security Questions???
Mother’s birthday? — Father’s middle name? — Third grade teacher?
Security challenge questions based on social information is probably not the best of ideas on a social networking site. Particularly now that Facebook’s user base is as expansive as it is.
After all, who’s going to know personal details about yourself?
That’s right — your friends.
Facebook should revise this sooner than later.
On 30/04/09 At 02:59 PM
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Monitoring E-Mail with Nagios
Posted in April 30th, 2009
Have you ever felt like you were being ignored? Have you ever felt like you were talking but no one was listening? Well, that’s how it feels when your e-mail system is broken and you don’t know it.
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