Issue #149 / Apr 2013

During the ongoing battle against spam, admins should inspect their troop’s battle lines from time to time. If you don’t relish the thought of counting the dinnerware, you can use the services of a logfile inspector like SendmailAnalyzer, which works surprisingly well with Postfix and the like.

Klaus Knopper is the creator of Knoppix and co-founder of LinuxTag expo. He currently works as a programmer, teacher, 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

OpenLayers is a JavaScript library that allows you to integrate maps into web pages. You can program the geodetic data directly or read it from a database.

Thanks to protocols such as UPnP and DLNA, video, audio, and photos are distributed to TVs, gaming consoles, PCs, and smartphones without the need for configuration. Linux as a central media server is a welcome guest.

Simon is a sophisticated speech recognition tool with easy access to two powerful speech recognition engines, Julius and CMU Sphinx.

A Perl script calls various plugins that sniff around on FTP and HTTP servers run by the major Linux distributions to discover when Fedora, Debian, and other distros update their packages.

The market for good image editing programs for Linux is pretty much saturated. Despite this, BrainDistrict has dared to launch two commercial programs: IFX-Supreme and PaintSupreme.

As someone who writes about Linux and open source software for a living, I have tools and tricks that are essential for my daily computing. In this installment of the Workspace feature, I share my personal favorites with you.

Defragfs optimizes files on a system, allowing videos to load faster and large archives to open in the blink of an eye.

Security applications like antivirus protectors respond to events, rather than preventing them from happening, but the best security in Linux is architectural – that is, in its configuration.