lkml.org 
[lkml]   [2004]   [Nov]   [29]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: no entropy and no output at /dev/random (quick question)
Jan Engelhardt wrote:
>>I have a server that runs kernel 2.6.9, some web and monitoring
>>services, it's connected to two different networks with two different
>>network cards, and somehow a php developer discovered that /dev/random
>>wasn't giving any entropy to him (O_O) so i checked it out...
>>[...]
>>As you may see my only sources of entropy where the timer, eth0, eth1
>>and the DAC960.
>
>
> I doubt that timer and eth* are a non-predictable source. As such, they should
> not contribute to the entropy. Better is the keyboard and/or mouse. SSH traffic
> is network traffic, and if you send it to a network card, you can expect an
> interrupt at <time>... prdictable.
>
>
> Jan Engelhardt
Hmm you got it wrong, I'm saying that my only "interrupt generating
hardware" was NOT contributing to the entropy. I mean, the timer (OF
COURSE NOT) and the NICs (same) but why don't the DAC960???

--

Javier Villavicencio
Administrador/Consultor
Direccion Nacional de Migraciones
Ministerio del Interior
Republica Argentina
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2005-03-22 14:08    [from the cache]
©2003-2011 Jasper Spaans