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About:
The Linux kernel can reset the system if serious problems are detected. This can be implemented via special watchdog hardware, or via a slightly less reliable software-only watchdog inside the kernel. Either way, there needs to be a daemon that tells the kernel the system is working fine. If the daemon stops doing that, the system is reset. watchdog is such a daemon. It opens /dev/watchdog, and keeps writing to it often enough to keep the kernel from resetting, at least once per minute. Each write delays the reboot time another minute. After a minute the watchdog hardware will cause the reset. In the case of a software watchdog, the ability to reboot will depend on the state of the machines and interrupts.
Author:
Michael Meskes [contact developer]
Homepage:
http://sourceforge.net/projects/watchdog
Tar/GZ:
http://sourceforge.net/projects/watchdog
Debian package:
http://ftp.debian.org/debian/pool/main/w/watchdog/
Trove categories:
[change]
Dependencies:
[change]
No dependencies filed
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