You need good software and plenty of CPU power to create virtual worlds. Luckily for today’s animators, powerful PCs are inexpensive, and some excellent animation tools are absolutely free.

Solfege helps you advance your musical knowledge and lets you practice identifying intervals, scales, and chords.

In the eery, distant days before the birth of Linux, a strange alien system set out to fulfill the promise of Unix. Descendents of that system are still living. We caught one and dissected it.

The Apache web server can fight back against DoS attacks. You just need a little help from Mod_evasive.

Every multi-purpose Linux system produces an enormous amount of log data. To prevent your hard disk from overflowing, a rotating helper application archives logs and gets rid of obsolete data.

How does the popular Nmap scanner identify holes in network security? In this article, we examine some Nmap analysis techniques.

Is your Internet connection groaning under the load of too many simultaneous downloads? If so, try Trickle, a simple application that gives you more granular control over network traffic.

AJAX technology adds dynamic elements to enhance sluggish websites. All it takes is a server-side Perl program and some client-side JavaScript code.

The Kat desktop search tool turns up more than text strings.

If you’re weary of sorting through overlapping windows, Whaw will help you get organized.