The Nagios check_logfiles plugin helps you monitor your logfiles – even if the logs rotate and change names.

Open source tools such as Hobbit, Nagios, and monit provide system monitoring for large or small networks.

Should free development be a part of free software, or is Apache pioneer Roy Fielding asking too much of Sun? Besides looking at the commercial side of free software, this month's column investigates synchronization of speech and text.

High-performance GUI-based ftp clients for Linux are hard to find. The graphical FileZilla ftp client closes the gap.

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

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

A new generation of rootkits avoids detection by virtualizing the compromised system – and the user doesn't notice a thing.

Tour the VirtualBox virtualization tool, a free and easy environment for virtual versions of Linux, Unix, and Windows.

The powerful and popular Xen virtualization system offers an easy solution for running Windows on Linux.