Linux Journal Contents #97, May 2002
Linux Journal Issue #97/May 2002
Features
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Lowering Latency in Linux: Introducing a Preemptible Kernel
by Robert Love
Love explains just how this kernel patch does its magic.
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How the PCI Hot Plug Driver Filesystem Works
by Greg Kroah-Hartman
Oh, the simplistic sweetness of a RAM-based filesystem.
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Netfilter 2: in the POM of Your Hands
by David A. Bandel
Now that you've got the basics, it's time for advanced iptables building.
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Taking Advantage of Linux Capabilities
by Michael Bacarella
Bacarella gives the skinny on the security benefits of POSIX capabilities in the Linux kernel.
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Debugging Kernel Modules with User-Mode Linux
by David Frascone
Keep your kernel (and hardware) safe by running it in user space with UML.
Indepth
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Crystal Space: an Open-Source 3-D Graphics Engine
by Howard Wen
Finally the advantages of open source come to 3-D graphics engines.
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The Beowulf State of Mind
by Glen Otero
An introduction to Beowulf clusters and a HOWTO on setting up a Rocks cluster.
Interview
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LJ Talks with Linux Kernel Developer Ted Ts'o
by Don Marti and Richard Vernon
Ted talks about current kernel development, his passion for amateur radio and more.
Toolbox
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At the Forge Databases and Zope
by Reuven M. Lerner
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Cooking with Linux Getting to Know You...My Kernel
by Marcel Gagné
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Paranoid Penguin Understanding IDS for Linux
by Pedro Bueno
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GFX Tippet Studio and Nothing Real's Shake
by Robin Rowe
Columns
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Focus on Software Pessissism or Realism?
by David A. Bandel
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Focus on Embedded Systems Embedded Linux Targets Telecom Infrastructure
by Rick Lehrbaum
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Linux for Suits It's Elemental—Natural Advantages
by Doc Searls
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Geek Law : The Role of Standards
by Lawrence Rosen
Departments
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Letters
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upFRONT
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From the Editor From the Editor
by Richard Vernon
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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.
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| 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
- Dynamic DNS—an Object Lesson in Problem Solving
- Making Linux and Android Get Along (It's Not as Hard as It Sounds)
- Using Salt Stack and Vagrant for Drupal Development
- New Products
- A Topic for Discussion - Open Source Feature-Richness?
- Drupal Is a Framework: Why Everyone Needs to Understand This
- Validate an E-Mail Address with PHP, the Right Way
- What's the tweeting protocol?
- Readers' Choice Awards
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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