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At the Forge - Fixtures and Factories

By Reuven M. Lerner 
Use factories and fixtures in your Rails applications to help simplify your database-related testing. more>>

Hack and / - What Really IRCs Me: Instant Messaging

By Kyle Rankin 
Use Bitlbee to roll all of your instant-messaging accounts into an IRC interface and do all your chatting from one place. more>>

Work the Shell - Looking More Closely at Letter and Word Usage

By Dave Taylor 
More examples of using the shell to find the frequency of letters used in the English language. more>>

Hack and / - Right Command, Wrong Server

By Kyle Rankin 
It's easy to lose track of what your servers do when they number in the tens or hundreds. Here are a few simple techniques I've found that make it easier to manage them all. more>>

Hack and / - Lightning Hacks Strike Twice

By Kyle Rankin 
Are four hacks better than one? This month, check out four short Linux tips that will save you time and effort (or just rotate your X display like a top). more>>

Work the Shell - Deal or No Deal!

By Dave Taylor 
Use bash to calculate game outcomes and help you win at Deal or No Deal. more>>

Cooking with Linux - Serious Cool, Sysadmin Style!

By Marcel Gagné 
Open-source software users have practically thousands of cool packages from which to choose. It's too many packages and too little time. Desktop users know this joy well. Now system administrators can know the same joy, and then some. more>>

Linux-Based 8mm Telecine

By Frank Pirz 
Got lots of 8mm film but no projector? Would you like to see those 30-year-old home movies your parents made when you were a kid one more time? Here's how a Linux system can be used to convert 8mm film to DVD movies. more>>

Hack and / - When Disaster Strikes: Attack of the rm Command

By Kyle Rankin 
Can the rm -rf / command ever be tamed? Learn how to pick up the pieces when rm runs rampant on your filesystem. more>>

Linux-Powered Amateur Rocket Goes USB

By Sarah Sharp 
The next Portland State Aerospace Society rocket, scheduled for first launch this summer, will have new hardware, including a switch from CAN to USB. more>>

Fun with the iRobot Create

By Zach Banks 
Let your computer reach into the physical world with the iRobot Create. more>>

Work the Shell - More Special Variables

By Dave Taylor 
Use bash's more powerful variable substitution forms to simplify your scripts. more>>

3-D Graphics Programming with Irrlicht

By Mike Diehl 
Stone obelisks, a purple spinning cube and a Babe in Black—all this in less than 100 lines of code! more>>

Work the Shell - More Fun with Word and Letter Counts

By Dave Taylor 
Determine the frequency of letters within a document (and become unbeatable at Hangman). more>>

Work the Shell - Counting Words and Letters

By Dave Taylor 
Count the number of unique words in a document. more>>
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How to Build an Optimal Hadoop Cluster to Store and Maintain Unlimited Amounts of Data Using Microservers

Realizing the promise of Apache® Hadoop® requires the effective deployment of compute, memory, storage and networking to achieve optimal results. With its flexibility and multitude of options, it is easy to over or under provision the server infrastructure, resulting in poor performance and high TCO. Join us for an in depth, technical discussion with industry experts from leading Hadoop and server companies who will provide insights into the key considerations for designing and deploying an optimal Hadoop cluster.

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Red Hat White Paper: Using an Open Source Framework to Catch the Bad Guy

Built-in forensics, incident response, and security with Red Hat Enterprise Linux 6

Every security policy provides guidance and requirements for ensuring adequate protection of information and data, as well as high-level technical and administrative security requirements for a system in a given environment. Traditionally, providing security for a system focuses on the confidentiality of the information on it. However, protecting the data integrity and system and data availability is just as important. For example, when processing United States intelligence information, there are three attributes that require protection: confidentiality, integrity, and availability.

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