To the users, it looks like regular e-mail. But behind the scenes, a Linux-based project is using HF radio to move it hundreds of kilometers without a wire or even a repeater.
When your software gets new users who prefer a different language, what are you going to do? Learn the fundamentals of POSIX locales and GNU gettext now, so that you can make your program multilingual later.
Some of the hardest languages to support are also some of the most widely spoken. Here's an overview of the projects to make Linux work with the two languages on our cover and more.
Some of today's hottest security projects are using the 2.5 kernel's LSM technology. Kernel hacker Greg Kroah-Hartman explains the new security framework that will give you an extra layer of protection in the future.