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標 題Re: [PATCH RFC] Disable save-entropy in jails
發信站NCTU CS FreeBSD Server (Thu Dec 26 06:50:00 2013)
轉信站ptt!csnews.cs.nctu!news.cednctu!FreeBSD.cs.nctu!.POSTED!freebsd.org!ow
On Wed, 25 Dec 2013 22:24:27 +0100
Pawel Jakub Dawidek wrote:
> We could do the same for save-entropy. It would be even nicer to have
> some flag so that even sysctl(8) is not executed.
The only security consideration here is that a bug in that conditional
test might prevent entropy being saved. The benefit is saving a few KBs
of disk space and a few cpu cycles a few times an hour. Tiny risk, even
tinier benefit IMO.
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