Binary package “watchdog” in ubuntu precise
System health checker that also trigger kernel watchdogs
The watchdog program writes to /dev/watchdog every ten seconds. If
the device is opened but not written to within a minute, the machine
will reboot. This feature is available when the kernel is built with
'software watchdog' support (standard in Debian kernels).
The ability to reboot will depend on the state of the machine
and interrupts if the kernel software watchdog is used.
The watchdog tool itself runs several health checks and acts accordingly if
the system is not in a good shape.