Wbumount lists the processes which are using a certain mount point, thus preventing it from being removed. This is meant to assist the user who receives a "umount: device is busy" message when trying to remove a disk. The list is updated once every second. When all processes are gone, the "umount" and "eject" buttons are activated. This teaches a desktop user how to peform the right actions to free a mount point in an interactive way.
GResolver is a graphical DNS query tool. It allows system administrators to quickly and easily make the most common DNS queries without constructing lengthy dig commands. It supports all the main resource record types, including AAAA, AXFR, MX, and TXT, and the appropriate in-addr.arpa address is constructed from dotted-quad IP addresses when doing PTR queries. There are checkboxes for controlling the most commonly used options.
Raven's System Stats allows users to collect detailed information about an operating system, including kernel architecture, distro, operating system, kernel version, glibc version, name of login shell, number of CPUs, CPU description, hyperthreading support, CPU MHz, CPU cache, bogomips, used and total RAM, used and total swap, filesystem size and type, uptime, unique users logged in, total login shells, currently running processes, total processes since bootup, load average, X resolution, and the number of X servers running.
NCmatrix is a ncurses-based screensaver that produces the familiar display of vertical characters with added functionality to display network traffic. /proc/net/dev is polled to grab incoming and outgoing packet information, and the results are displayed as long or short colored streams of characters in the display, depending on the number of packets transferred since the previous poll. This code is based on the CMatrix codebase by Chris Allegretta.
Alerttail monitors a given file and executes a list of actions when a user-defined text pattern has been written to the file. For example, the user can pop up a GTK notification window when a certain message is written to a log file. Actions can be alerttail built in actions (GTK notify action, geoipLocalization action, or filtering text action) or a custom user defined shell command action. A Qt 4 GUI frontend helps with configuration.
iloog is a Gentoo-based live CD targeted mainly at students and scientists. It features UnionFS filesystem support that enables you to write everywhere on the LiveCD and install extra packages, a graphical X environment through the Fluxbox window manager, many programming editors and IDEs, and a plethora of scientific applications, including Octave, Namd, Merlin, and full (La)TeX support.
Diskus is a high-level hard drive diagnostic and limited repair tool. It checks the disk geometry by writing numbered IDs into the sectors of the hard drive. Later one can verify that these sector-IDs on the disk are still correct, thereby detecting data which was not correctly written. There is an option to "freshen" the data on your harddrive, which will read and rewrite the sectors. With modern drives this will re-map defective sectors.