BIND 9's entropy consumption
dot at dotat.at
Thu Apr 3 09:59:11 UTC 2014
Tom Limoncelli <tal at whatexit.org> wrote:
> I have 4 DNS servers all running BIND 9.8.2 (the CentOS 6.5 package). One
> is configured as the master for about 100 zones. The other 3 are slaves
> for those 100 zones. On the master the amount of entropy reported by "cat
> /proc/sys/kernel/random/entropy_avail" was around 150. On the slaves it
> hovered around 90.
> Is there a technical reason for the difference?
My guess is that the slaves need more random numbers because they are
making more queries, to check the SOAs of the zones.
f.anthony.n.finch <dot at dotat.at> http://dotat.at/
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