Is your address book open to the world? Is your mobile phone calling Russia? Many users don’t know how easy it is for an attacker to target Bluetooth.

Even if your printer vendor doesn’t advertise Linux Bluetooth support, there are a few tools that may help you set up your Linux system for Bluetooth printing.

We’ll show you how to set up support for a Bluetooth stereo headset.

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

The Roadrunner supercomputer developed by IBM for the Department of Energy at the Los Alamos National Laboratory is the first to take the Petaflops hurdle of 1.026 billion operations per second.

The Open Graphics project has released specifications for its first card and will accept orders at a price of US$ 1500.

Hardware specialist Intel and embedded systems manufacturer Wind River are aiming to put Linux on wheels. Both enterprises have announced their intention to release a jointly developed Linux platform for the automotive industry.

Many enterprises still rely heavily on mainframes, which makes it all the more difficult to get your hands on one and install Linux on it. The Hercules emulator gives you a full-fledged alternative.