Linux Journal Contents #75, July 2000
Linux Journal Issue #75/July 2000
Focus
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Science & Engineering
by Marjorie Richardson
Features
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Gri: A Language for Scientific Illustration
by Dan E. Kelley and Peter S. Galbraith
This scripting language avoids integrating analysis and display capabilities and instead focuses on providing precise and flexible control over the display of technical material.
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Tracking Satellites with PREDICT
by John A. Magliacane
A look at the development and use of an open-source satellite-tracking and orbital-prediction program.
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Detecting Chaos in the Field
by Juergen Kahrs
All that is real is reasonable, and all that is reasonable is real. —G.W.F. Hegel, 1770-1831
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THOR: A Versatile Commodity Component of Supercomputer Development
by Robert A. Davis
CERN continues to use Linux as their OS of choice for modeling and simulation studies.
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A GNU/Linux Wristwatch Videophone
by Steve Mann
This fully fuctioning prototype, designed and built by Steve Mann in 1998, was demonstrated in 1999, and later used to deliver a videoconference at ISSCC 2000.
Forum
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Three-Tier Architecture
by Ariel Ortiz Ramirez
Professor Ortiz presents a little of the theory behind the three-tier architecture and shows how it may be applied using Linux, Java and MiniSQL.
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cgimodel: CGI Programming Made Easy with Python
by Chenna Ramu and Christina Gemuend
Always look on the bright side of life and at a method for debugging CGI programs on the command line.
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Mapping Lightning with Linux
by Timothy Hamlin
NM Tech studies lightning to determine basic charge structures and learn more about storm morphology.
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Using Linux in Embedded and Real-Time Systems
by Rick Lehrbaum
When you need an embedded operating system, Linux is a good place to start. Here's why.
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Troll Tech Announces Embedded GUI Toolkit
by Craig Knudsen
Troll Tech enters the embedded systems market—here's what's happening.
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The Montréal 2000 Linux Expo
by Marcel Gagné
LJ's French chef visits Montréal April 10-12 for more than the food.
Reviews
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Medusa DS9 Security System
by Robert Dobozy
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Cygwin: For Windows NT
by Daniel Lazenby
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Understudy
by Daniel Allen
Columns
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Take Command The System Logging Dæmons, syslogd and klog
by Michael A. Schwarz
Take command of your log files by learning to handle those pesky logging dæmons.
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Linux Means Business Using Linux at Left Field Productions
by David Ashley
One programmer's experiece developing a Gameboy emulator on Linux.
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System Administration Getting the NT Out—and the Linux In
by David C. Smith
An overview of configuring Linux using Samba to replace the services provided from Windows NT servers.
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Kernel Korner Linux System Calls
by Moshe Bar
How to use the mechanism provided by the IA32 architecture for handling system calls.
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Linley on Linux Voice Recognition Ready for Consumer Devices
by Linley Gwennap
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Cooking with Linux An Appetite for Discovery
by Marcel Gagné
Looking at the skies for stars and aliens can both be done on Linux systems.
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At the Forge Press Releases with Mason
by Reuven M. Lerner
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Focus on Software
by David A. Bandel
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Embedded Systems News
by Rick Lehrbaum
Departments
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Letters
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upFRONT
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Penguin's Progress: Collecting RFCs
by Peter H. Salus
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Linux for Suits The Message
by Doc Searls
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Best of Technical Support
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New Products
Strictly On-Line
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Mastering Algorithms with C
by John Kacur
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Red Hat Linux 6 for Small Business
by Paul Dunne
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Low-Bandwidth Communication Tools for Science
by Enrique Canessa and Clement Onime
No access to the Internet? Browse the Web via e-mail instead!
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Security Technologies for the World Wide Web
by Wael Hassan
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Getting Started in Computer Consulting
by Ralph Krause
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Teach Yourself Emacs in 24 Hours
by Ralph Krause
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Linux Administration A Beginner's Guide
by Harvey Friedman
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AIPS and Linux: A Historical Reminiscence
by Patrick P. Murphy
The Astronomical Image Processing System looks at the sky using the radio wave section of the electromagnetic spectrum.
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
| 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 |
| Trying to Tame the Tablet | May 08, 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
- 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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