joyd is a very flexible program that allows you to execute commands via a joystick or joypad attached to your computer. One simple possibility would be to reboot when your keyboard is hung. It can use any device supported by the Linux Joystick Driver. Helper applications allow you to test the joystick status in your own shell scripts.
Wackamole is a tool that helps with making a cluster highly available. It manages a bunch of virtual IPs that should be available to the outside world at all times, and ensures that exactly one machine within the cluster is listening on each virtual IP address that Wackamole manages. If it discovers that particular machines within the cluster are not alive, it will almost immediately ensure that other machines acquire the virtual IP addresses the down machines were managing. At no time will more than one connected machine be responsible for any virtual IP.
The Linux joystick driver provides support for joysticks under Linux. The 1.2.14 version supports classic analog PC joysticks, ThrustMaster FCS, CH Flightstick Pro and 6/8- button gamepad compatible extensions, digitally communicating joysticks from Creative, FPGaming, Genius, Gravis, Logitech, MadCatz, Microsoft, SpaceTec, ThrustMaster, PDPI L4 gamecard, as well as various (NES, SNES, Sega, PSX, Atari, Amiga, Commodore, Amstrad) gamepads and joysticks connected to the PC's parallel port.
PortSensor is a powerful Windows/Unix server monitoring tool with Linux/Mac/Windows clients. Sensors can be created to monitor nearly any TCP/UDP service, such as: HTTP, FTP, POP3, SMTP, MySQL, and DNS. Custom sensors can be created to monitor your other critical server metrics, such as processor loads, mail queue loads, disk space usage, and log activity.
digup is a console tool to update md5sum or shasum digest files. It will read existing digest files, check the current directory for new, updated, modified, renamed, or deleted files, and query the user with a summary of changes. After reviewing the updates, they can be written back to the digest file. This makes digup very useful to update and verify incremental archives like chronological data storages, which are commonly stored and backed up on hard disks. Using a full file digest scan, even slowly creeping bad blocks on old hard disks can be detected. By using a crontab entry, this check can be performed unattended and routinely.
CD-R/W discs can be written with a technique called packet or incremental writing. This allows transparent and buffer-underrun-free recording for CD recorders that support this method. No more mastering of .iso images; just mount your CD-ROM read/write and copy files directly to it.