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	<title>SysAdm Blog</title>
	<link>http://blog.doylenet.net</link>
	<description>Blog of a system administrator</description>
	<lastBuildDate>Thu, 17 Jun 2010 03:12:54 +0000</lastBuildDate>
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		<title>New paper: Frequency analysis of second-level domain names and detection of pseudo-random domain generation</title>
		<description><![CDATA[Its long title I know. While doing some other related personal research, I wrote this excerpt:
We can also look at the randomness of a domain name. For example ajksudmapx.com looks to be random for a human. To reverse randomness would be similarly as difficult as reversing a hashing algorithm. We could look at how domain [...]]]></description>
		<link>http://blog.doylenet.net/?p=226</link>
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		<title>Stratum 1 NTP, Garmin GPS 18 LVC on FreeBSD 8.0</title>
		<description><![CDATA[In this tutorial, I will be going over setting up a Garmin GPS 18 VLC to work with NTP on FreeBSD 8.0. This is the result of many hours of researching and troubleshooting to get everything up and running on FreeBSD. It is based loosely on http://www.satsignal.eu/ntp/FreeBSD-GPS-PPS.htm but as I found out there are a [...]]]></description>
		<link>http://blog.doylenet.net/?p=145</link>
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		<title>Expanding a LVM partition to fill remaining drive space</title>
		<description><![CDATA[When I deploy new servers through VMWare ESX, I usually copy an existing base that I have already setup. I keep the base image VMDK size small so it is quick to copy. When I have copied the image and am setting up a new server, I adjust the size of the VMDK in VMWare [...]]]></description>
		<link>http://blog.doylenet.net/?p=129</link>
			</item>
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		<title>Provisioning a Linux web and shell server in an Active Directory environment</title>
		<description><![CDATA[In this rather large tutorial, I will go over setting up a Linux server to be used for user web space, shell access, FTP access any anything else that is PAM aware. All user accounts will reside in Active Directory. There is no password syncronisation or dirty scripts to pull it all together.
Overview
This tutorial is [...]]]></description>
		<link>http://blog.doylenet.net/?p=113</link>
			</item>
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		<title>SSD Drives, Failure Rates and some Graphs</title>
		<description><![CDATA[Solid state hard drives are the new craze &#8211; and for good reason too. They offer a linear access speed regardless of where the data is located on the drive, a improved MTBF (Mean Time Between Failure) and have a lightening fast access/seek time. We are looking at using SSD drives for our new servers [...]]]></description>
		<link>http://blog.doylenet.net/?p=105</link>
			</item>
	<item>
		<title>Decoding the Skype Host Cache</title>
		<description><![CDATA[The host cache in Skype keeps a database of peers that Skype talked to upon last running. A host cache is one of several bootstrapping technologies that peer-to-peer networks use to connect a peer into the overlay network.
The host cache is kept in the shared.xml file located in the users home directory. If you look [...]]]></description>
		<link>http://blog.doylenet.net/?p=101</link>
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		<title>Sysprep: Single Image Intel/AMD &amp; uni/multi-processor with Windows XP</title>
		<description><![CDATA[The Windows XP sysprep tool is quite limited in the hardware configurations that it supports. With a few hacks and tweaks you can successfully deploy the same syspreped image to both Intel and AMD hardware and uni-processor as well as multi-processor CPU&#8217;s.
Before starting, there are a few assumptions

The master hardware is a uni-processor Intel PC
It [...]]]></description>
		<link>http://blog.doylenet.net/?p=91</link>
			</item>
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		<title>Western Digital MyBook World and mounting CIFS</title>
		<description><![CDATA[Background
I bought a 500GB WD MyBook World edition with the intention of using it to backup various servers on my network. I did a bit of research and found out that it ran Linux and also had a pretty decent community following; here and here. It isn&#8217;t anywhere near what the NSLU2 had (I was [...]]]></description>
		<link>http://blog.doylenet.net/?p=82</link>
			</item>
	<item>
		<title>Replace failed drive in Linux software RAID1</title>
		<description><![CDATA[I recently had to replace a failed drive in my Linux server (in fact, the server that this blog is hosted). It is setup as 2 x 200GB PATA hard drives configured in Linux software RAID1.
Once you have identified that the RAID has failed (you will get an email about the event if you have [...]]]></description>
		<link>http://blog.doylenet.net/?p=78</link>
			</item>
	<item>
		<title>Image-based CAPTCHA</title>
		<description><![CDATA[I&#8217;ve recently completed a small project for Uni; an image based CAPTCHA mechasisim I have called Jaci (Just Another Captcha Implementation). It requires you to drag and drop relevent images onto eachother in order to pass the test. The images are not static and uses Google Image Search for the source of the images.
The main [...]]]></description>
		<link>http://blog.doylenet.net/?p=75</link>
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