strace is a useful little utility – installed by default on most Linux systems – which allows you to find out what a program is doing under the hood by tracing the system calls it's making.

Phoronix recently published an article regarding a ~200 lines Linux Kernel patch that improves responsiveness under system strain. Well, Lennart Poettering, a RedHat developer replied to Linus Torvalds on a maling list with an alternative to this patch that does the same thing yet all you have to do is run 2 commands and paste 4 lines in your ~/.bashrc file.

This document describes how to install a Postfix mail server that is based on virtual users and domains, i.e. users and domains that are in a MySQL database. I'll also demonstrate the installation and configuration of Courier (Courier-POP3, Courier-IMAP), so that Courier can authenticate against the same MySQL database that Postfix uses.

If you’ve ever experienced one of your kids saying “Mom, how do I solve this math problem? What should I do? I’m bored”, then you’ll appreciate KDE Edutainment to help you teach your kids basic mathematics and other sciences.

Nginx (pronounced "engine x") is a free, open-source, high-performance HTTP server. Nginx is known for its stability, rich feature set, simple configuration, and low resource consumption. This tutorial shows how you can install Nginx on an Ubuntu 10.10 server with PHP5 support (through PHP-FPM) and MySQL support.

Terry Burton’s Barcode Writer in Pure PostScript is a fast and flexible barcode generating tool in its own right. BWIPP is a collection of barcode generation functions written in PostScript itself, which can be directly embedded in final PostScript output, sent directly to a printer, or interpreted by a PostScript tool like Ghostscript and turned into an image.

"Wouldn't it be nice to just start an application at the navigation stage? Well you can. As well as: graphically feed text to Espeak or Festival, graphically display a command's output like a directory listing or a file's contents, graphically start a web browser at a specific website like a Google search with your input, and so much more! This is basic BASH and Zenity, so don't worry, it's easy!"

The Fedora Project, a Red Hat sponsored and community-supported open source collaboration, today announced the availability of Fedora 14, the latest version of its free open source operating system distribution.