Any doc reference on /entropy file ?

Wojciech Puchar wojtek at
Tue Dec 16 15:08:02 UTC 2008

> -rw-------   1 root  wheel  4096 Dec 11 17:36 entropy
> I can't find any reference to that file in FreeBSD doc.
> Any reference to it ? What is it used for ? I have look in RANDOM area, but 
> no reference...

at startup it seeds random generator, every 11 minutes and at shutdown 
it's saved from random generator.

it's here to make random generator more random - not starting clean at 

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