Issue #83 / Oct 2007
Cover Theme: Virtualization
DVD: Debian 4.0
REVIEWS: BOOK REVIEWSInformation Visualization: Design for Interaction Service Oriented Architecture for Dummies Security Metrics...
REVIEWS: GCC 4.2GNU Compiler Collection 4.2
The latest GNU compiler provides better support for parallel programming, and GCC also rolls out some new optimization features. We took GCC 4.2 for a test drive.
KNOW-HOW: Motion DetectionDetecting movements with Motion
The motion detector software, Motion, monitors the video signal from one or multiple cameras and is able to detect whether a significant part of the picture has changed, record and track movement, or launch arbitrary external commands to trigger other actions.
KNOW-HOW: PowerTOPSaving power with PowerTOP
Intel’s PowerTOP analysis tool helps optimize power usage and shows you the power guzzlers hiding out on your operating system.
LINUXUSER: Workspace: wikiCalcWikified approach to the spreadsheet
wikiCalc is a unique tool that offers a combination of spreadsheet functionality and wiki features. This may sound like a strange pairing, but wikiCalc provides a refreshingly new approach to the spreadsheet concept.
KNOW-HOW: ASK KLAUS!
Klaus Knopper is the creator of Knoppix and co-founder of the LinuxTag expo. He currently works as a teacher, programmer, and consultant. If you have a configuration problem, or if you just want to learn more about how Linux works, send your questions to: klaus@linux-magazine. com
SYSADMIN: Charly's ColumnThe Sys admin’s daily grind: Nttcp
Some weather forecasts give you the temperature and a windchill adjustment, and a similar forecast for bandwidth would be helpful. If you feel the bandwidth is too low – and it always is – you need some kind of measuring instrument to reveal the truth.
SYSADMIN: Load AverageUnderstanding load averages and stretch factors
What is the real meaning of those little “load average” values in the output of shell commands like procinfo and uptime, and what can you do with these numbers?
PROGRAMMING: Neural NetworksProgramming neural networks with libfann
3, 4, 8, 11… ? A neural network can complete this series without knowledge of the underlying algorithm – by a kind of virtual gut feeling. We’ll show you how neural networks solve problems by simulating the behavior of a human brain.
PROGRAMMING: Perl: Multimeter to Measure Power ConsumptionPerl uses a multimeter to report power consumption
Today’s digital multimeters can do more than measure current and voltage. Multimeters also measure capacity and temperature. An inexpensive multimeter can talk to your PC via the serial port, and simple Perl scripts let you read and visualize data in neat charts.
Richard Stallman calls for the W3C to remain independent of vendor interests.
The new release supports nine architectures, 73 human languages, and zero non-Free components.
Fedora developers release the first alpha version of Fedora 19, known as Schrödinger’s Cat, for general testing. The final release is expected in July 2013.
ack is a grep-like, command-line tool that has been optimized for programmers to search large trees of source code.
New features in SUSE Studio 1.3 include enhanced cloud integration, VM platform support, and lifecycle management.
The Linux Foundation recently announced that the Xen Project is becoming a Linux Foundation Collaborative Project.
Open source version of LiveCode is now available for developing apps, games, and utilities for all major platforms.
OpenDaylight is an open source software-defined networking project committed to furthering adoption of SDN and accelerating innovation in a vendor-neutral and open environment.
The new Gnome release includes privacy and sharing settings, allowing more user control over access to personal information.
Mozilla is collaborating with Samsung on a new web browser engine called Servo.