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Date:      Fri, 11 May 2001 16:59:55 -0400 (EDT)
From:      Robert Watson <rwatson@freebsd.org>
To:        Wilko Bulte <wkb@freebie.demon.nl>
Cc:        Murray Stokely <murray@freebsd.org>, cvs-committers@freebsd.org, cvs-all@freebsd.org
Subject:   Re: cvs commit: doc/en_US.ISO_8859-1/books/handbook/advanced-networking chapter.sgml
Message-ID:  <Pine.NEB.3.96L.1010511165523.30751C-100000@fledge.watson.org>
In-Reply-To: <20010511195046.B1672@freebie.demon.nl>

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On Fri, 11 May 2001, Wilko Bulte wrote:

> On Fri, May 11, 2001 at 02:25:34AM -0700, Murray Stokely wrote:
> 
> Which reminds me: I discovered (actually, I read the man page ;-)  that
> Tru64's mountd automagically re-reads /etc/exports once it gets polled
> by a 'showmount -e'
> 
> Would this be something for FreeBSD? I, for one, tend to forget this
> kill -1 thingy. 

Maybe it's just me, but I hate it when I discover "automagic" things like
that.  As the administrator, I know when the contents of the file
/etc/exports will be consistent on disk, and I indicate that to the daemon
by sending it a signal.  If daemons are capable of detecting file writes
or spontaneously re-reading, they run the risk that either they'll see an
inconsistency during the file writing process from the editor
(mid-memory-chunk, say), or that they'll hit a copy which I've saved but
not yet finished editing.  I'm all for making restarting daemons easier --
you can imagine a daemonctl or something that speaks "restart" for a bunch
of daemons, but automagic can sometimes hurt you more than it helps you.

Robert N M Watson             FreeBSD Core Team, TrustedBSD Project
robert@fledge.watson.org      NAI Labs, Safeport Network Services



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