Re: Interesting Server Issue

["nate" <debian-user@aphroland.org>]

<quote who="Matthew Sackman">
> Hay all.
>

> I rebooted the machine yesterday morning, yet this morning it was
> showing an uptime of 9 hours. I know for a fact it hasn't been turned
> off.

so there is a UPS on the machine and your not aware of any
power issues i guess.

>
> My hunch is that the network card (3Com 905) is somehow putting it to
> sleep.

I have never heard of a network card putting a machine asleep
by itself. I don't think it is possible without something
actually sending a command to the NIC.

? This is based on the idea that the one remaining other machine on
> the network would have been turned off at about 17:50 last night and
> would have been turned on at about 08:24 this morning.

and if a person turned off that system could they not of
turned off yours too? (or put it into sleep mode, since some
power switches can be configured to go to sleep when
pressed while the system is up ..)


> Between these
> times, other machines would have had power and other machines all have
> 3Com Cards which are still 'on' even though the machine is off
> (soft-off) - the switch shows the nics are actually still on.
>
> Is this possible? Is this at all likely? Is there anyway of stopping
> this? I've not set anything up specifically to do this and I'd love to
> stop it!

IMO it is not likely, very very very remote chance. it wouldn't
be on a list i would consider. to turn any such behavior off,
find the cable that connects from the NIC to a special connector
on the MB and remove it. if there is no cable, then i would say
it is impossible for this to have happened in the manor you
described. can you scroll up on the console and se anything?
check the other log files for possible evidence of a system
boot.

if someone were tob reak into a system i would find it stupid
that they would just erase the logs going back since you
last booted up, that would be quite obvious. more likely
there is something else going on.

i run many many systems with 3com 3c905 cards, and have
never ever ever had a single machine go to sleep.

nate





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