看板FB_security
標 題Re: NEVERMIND!
發信站NCTU CS FreeBSD Server (Tue May 27 03:46:14 2014)
轉信站ptt!csnews.cs.nctu!news.cednctu!FreeBSD.cs.nctu!.POSTED!freebsd.org!ow
In message <
[email protected]>,
Ian Smith <
[email protected]> wrote:
>... might syslog trigger adhoc rotations by
>newsyslog - of a particular log, not all - after learning how to measure
>'stress', perhaps by rates of delta filesize, diskspace consumption etc?
(Not that anyone has any reason to care what _I_ think, but...) I must
say that I like that idea.
The specific thing (i.e. "measurment") that should trigger such an
event/action seems altogether obvious. If syslogd is writing a file
and it sees that the file in question has just exceeded its allowed
maximum (according to /etc/newsyslog.conf) then it is clearly time to
do something about it.
>Then newsyslog would only need to learn how to be so invoked?
How about "kill -HUP" ?
That seems to be the pro-forma thing that pretty much everything
else already uses as a way to tell any given daemon that it should
wake up and smell the coffee (again).
Of course, *if* one were in fact going to endow syslogd with all of
the intelligence necessary to read, understand, check, and act on the
various max filesize specifications contained within /etc/newsyslog.conf
then that would certainly prompt the question: Why not just merge the
two programs into one? (Obviously, that would eliminate the need for
interprocess signaling of any kind.)
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