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From: "Norbert Koch" <NKoch@demig.de>
To: <scuba@centroin.com.br>, <freebsd-questions@freebsd.org>
Date: Wed, 27 Jul 2005 08:18:06 +0200
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Subject: RE: sysctl deadmantimer
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> 	In the BSD/OS there is a kernel countdown counter that can be used
> to reboot the machine in case of lock. Itīs called deadmantimer.
> 	I used to put a cron entry to preset this counter every 3 min, so
> if it goes to zero the server is rebooted.
> 	In the past it save me some times.
>
> 	Is there anything like this in Freebsd?

Have a look at watchdogd(8).
Only available under 5X and above.

Norbert