Linux Journal Contents #113, September 2003
Linux Journal Issue #113/September 2003
Features
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Discovering Wireless Networks
by Tony Steidler-Dennison
Does anyone nearby have an access point you can use? Find out quickly.
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Linux-Powered Wireless Hot Spots
by Mike Kershaw
Put a convenient authentication system on your access point with free software.
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Linux Makes Wi-Fi Happen in New York City
by Doc Searls
At parks, phone booths and cafes, hackers are making this city a cornucopia of wireless Net access.
Indepth
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Scripting for X Productivity
by Marco Fioretti
Save your carpal tunnels—automate GUI actions for productivity and application testing.
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A Beginner's Guide to Using pyGTK and Glade
by Dave Aitel
Ready to move up from designing Web pages to designing applications? It's easier than you think.
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From Vinyl to Digital
by Tom Younker
Don't let your favorite oldies go unheard because they're less convenient to play than your new digital stuff.
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Garbage Collection in C Programs
by Gianluca Insolvibile
A surprising look at the performance of garbace collection vs. conventional memory management.
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ChessBrain: a Linux-Based Distributed Computing Experiment
by Carlos Justiniano
Try your skill against a worldwide network of chess-playing computers, or offer your PC's spare cycles to beat other people.
Embedded
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Put a Sump Pump on the Web with Embedded Linux
by Tad Truex
The circuit and software to make any electrical appliance reveal its secrets over the Net.
Toolbox
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Kernel Korner Exploring Dynamic Kernel Module Support (DKMS)
by Gary Lerhaupt
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At the Forge Bricolage
by Reuven M. Lerner
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Cooking with Linux Watching the Community Network
by Marcel Gagné
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Paranoid Penguin Authenticate with LDAP, Part III
by Mick Bauer
Columns
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EOF The Open Source Development Lab
by Stuart Cohen
Departments
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Letters
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upFRONT
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From the Editor Wireless Networking
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On the Web
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Best of Technical Support
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New Products
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.
Sponsored by AMD
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.
Learn more about catching the bad guy in this free white paper.
Sponsored by DLT Solutions
| Dynamic DNS—an Object Lesson in Problem Solving | May 21, 2013 |
| Using Salt Stack and Vagrant for Drupal Development | May 20, 2013 |
| Making Linux and Android Get Along (It's Not as Hard as It Sounds) | May 16, 2013 |
| Drupal Is a Framework: Why Everyone Needs to Understand This | May 15, 2013 |
| Home, My Backup Data Center | May 13, 2013 |
| Non-Linux FOSS: Seashore | May 10, 2013 |
- RSS Feeds
- Making Linux and Android Get Along (It's Not as Hard as It Sounds)
- Using Salt Stack and Vagrant for Drupal Development
- New Products
- Validate an E-Mail Address with PHP, the Right Way
- Drupal Is a Framework: Why Everyone Needs to Understand This
- A Topic for Discussion - Open Source Feature-Richness?
- Download the Free Red Hat White Paper "Using an Open Source Framework to Catch the Bad Guy"
- Tech Tip: Really Simple HTTP Server with Python
- Home, My Backup Data Center
Enter to Win an Adafruit Pi Cobbler Breakout Kit for Raspberry Pi

It's Raspberry Pi month at Linux Journal. Each week in May, Adafruit will be giving away a Pi-related prize to a lucky, randomly drawn LJ reader. Winners will be announced weekly.
Fill out the fields below to enter to win this week's prize-- a Pi Cobbler Breakout Kit for Raspberry Pi.
Congratulations to our winners so far:
- 5-8-13, Pi Starter Pack: Jack Davis
- 5-15-13, Pi Model B 512MB RAM: Patrick Dunn
- 5-21-13, Prototyping Pi Plate Kit: Philip Kirby
- Next winner announced on 5-27-13!
Free Webinar: Hadoop
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.
Some of key questions to be discussed are:
- What is the “typical” Hadoop cluster and what should be installed on the different machine types?
- Why should you consider the typical workload patterns when making your hardware decisions?
- Are all microservers created equal for Hadoop deployments?
- How do I plan for expansion if I require more compute, memory, storage or networking?




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