Re: Why does reading from /dev/urandom deplete entropy so much?

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Alan Cox wrote:
Here's the top 5:

   266 28caf2c3-9766-4fe1-9e4c-d6b0ba8a0132
   336 810e7126-1c69-4aff-b8b1-9db0fa8aa15a
   402 c8dbb9d3-a9bd-4ba6-b92e-4a294ba5a95f
   884 06e84493-e024-44b1-9b32-32d78af04039
   931 e2b67e1d-e325-4740-b938-795addb45280

The left number is times this month someone has submitted a profile with
that UUID.  If we take the last one as an example has come from over 800
IP's in the last 20 days.  It seems very unlikely that one person would
find his way to 800 different IP's this month.  Let me know if you'd
like more.
Background - Smolt runs this during its install:

/bin/cat /proc/sys/kernel/random/uuid > /etc/sysconfig/hw-uuid

For most users this would be run by the RPM %post scripts during install from anaconda. For some reason there are some UUID's (like those listed above) that come up more often then it seems they should if they are truly random.

-Mike
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