Re: no entropy and no output at /dev/random (quick question)

[Jan Engelhardt]

>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
-- 
Gesellschaft für Wissenschaftliche Datenverarbeitung
Am Fassberg, 37077 Göttingen, www.gwdg.de
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