Ledcontrol is a program that shows information on the normally-unused LEDs on your keyboard. You can configure it to show virtually any TRUE/FALSE condition or arbitrary value accessible. Features include blinking LEDs, priority levels, user-made animations, a GTK+ interface, etc. Ledcontrol works both in X and on a text console.
LineControl allows you to remotely control the Internet connection of a Linux masquerading server using multiple clients. It takes care with the number of clients using the connection and decides upon this number whether the connection should be up or down. The clients show the time the connection is up and throughput statistics. Different connection types are supported, such as analog modems, ISDN, or even cable modems and ADSL devices.
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.
The Linux SMP kernel uses spinlocks to protect data structures from concurrent, potentially conflicting accesses. This patch allows you to build a kernel that can perform simple "metering", or record-keeping, of spinlock usage. Also available is source for an associated new command, lockstat, that is used to instruct the kernel to turn this lock metering on or off, retrieve the metering data from the kernel, and display it in a human-readable format.
Heartbeat is a full-function high-availability system for Linux and other POSIX-like OSes. It monitors services and restarts them on errors. When managing a cluster (more than 1 machine), it will also monitor the members of the cluster and begin recovery of lost services in less than a second. It runs over serial ports and UDP broadcast/multicast, as well as OpenAIS multicast. It is easily adapted to different interconnect media and protocols. When used in a cluster, it can operate using shared disks, data replication, or no data sharing. Versions starting with 2.0 are comparable to any commercial HA package, providing resource monitoring, larger clusters, and detailed dependency information.
lm_sensors provides essential tools for monitoring the temperatures, voltages, and fans of Linux systems with hardware monitoring devices. It contains a library for sensors access (libsensors), a command-line tool for sensor reporting (sensors), and a daemon (sensord). It also contains scripts for sensor hardware identification and fan speed control.