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 From:  "Klaus Stock" <ks at stock dash consulting dot com>
 To:  "Soren Vanggaard Jensen" <svanggaard at hotmail dot com>, m0n0wall at lists dot m0n0 dot ch
 Subject:  Re: [m0n0wall] Version 1.22 freeze
 Date:  Mon, 12 Jun 2006 13:54:17 +0200
> What do you suggest i should do to eliminate the problem? Could i upload a

> script causing the monowall to reboot every night at 4AM? Any examples of 
> such a script?

Special hardware solutions to this problem class exist. The cheapest is a
time switch. Mechanical ones with a time interval of 15 minutes cost 2 or 3
EUR max. Electronic time switches can rduce the downtime to two minutes (1
minute power down interval, 1 mite reboot time), at slightly higher cost (<
10 EUR). Such things are readily available at many non-food supermarkets or
DIY markets ("home depot").

Unlike software solutions, a hardware switch sort of guranatees to work even
during solid OS freezes.

TCP/IP controleld switches are expensive (150..200 EUR), but allow for
reboots at any time. Unfortunately, these devices are to be located behind
the router...a most unuable configuration in case of a router freeze ;-)

The Geode CPUs (used in the WRAP platforms, dunno which CPUs are used in the
Soekris platforms) have a hardware watchdog. It would be definitely cool if
the m0n0wall software could utitlize such features. A mid-to-high priority
background process which triggers the watchdog timer reset hardware every
second or so might do the job - assuming that a solid freeze also freezes
this bachground job.

Best regards, Klaus

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