Users log on to services such as SSH, ftp, SASL, POP3, IMAP, Apache htaccess, and many more using their names and passwords. These popular access mechanisms are a potential target for brute-force attacks. An attentive bouncer will keep dictionary attacks at bay.

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 Linux Terminal Server Project offers a comprehensive approach to terminal services in Linux, including easy access to local sound cards, printers, and USB sticks.

Sunshine, pool, laptop, an open WLAN, and Wireless Tools were all it took for Heike to submit the latest issue of “Command Line” from Crete.

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

Let the nimble Perlbal web server keep your traffic in balance.

The arrival of Ubuntu 8.04 “Hardy Heron” signaled a new era for the whole family of distributions that use Ubuntu as a base. Kubuntu, Edubuntu, Mythbuntu, and other Ubuntu derivatives soon followed with new releases of their own projects.

If your mobile phone contract includes GPRS mobile Internet service,
you can use a Bluetooth phone as a wireless modem for your Linux
portable computer.

The rsync-based Flyback tool automatically creates snapshots of critical directories at regular intervals – and ordinary users can restore the backup with a few easy mouse clicks.