Virtual performance tuning is a lot like ordinary performance tuning – but not exactly.

Synergy lets you combine multiple PCs into a single virtual desktop.

For the longest time, Charly used vi to edit his nameserver's zone data, which isn't too elegant because a mere fat-finger will get you into DNS trouble. Fortunately, NicTool will help ease the pain – even in the midst of a move big enough to kick up a dust storm.

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

Tune up your systems and search out bottlenecks with these handy performance tools.

If you work with third-party hardware drivers, or even if you just need to fix a broken system, someday you might need to upgrade the Linux kernel.

Tired of copying and recopying files from your laptop to the office file server? Maybe you need an automated offline filesystem, such as OFS.

Add security to your website with a one-time password system.