Date: Tue, 6 Jun 2000 10:01:19 -0500 From: Brad Guillory <round@baileylink.net> To: freebsd-security@FreeBSD.ORG Subject: Re: FreeBSDDEATH.c.txt (mmap dirty page no check bug) Message-ID: <20000606100119.B56528@baileylink.net> In-Reply-To: <200006061440.HAA93503@apollo.backplane.com>; from dillon@apollo.backplane.com on Tue, Jun 06, 2000 at 07:40:41AM -0700 References: <Pine.BSF.4.21.0006021647100.10651-100000@epsilon.lucida.qc.ca> <Pine.BSF.3.96.1000606222934.9047A-100000@aurora.scoop.co.nz> <20000606141000.H36228@vuurwerk.nl> <200006061440.HAA93503@apollo.backplane.com>
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I would suggest checking a file's atime over mtime. Of course
this will not work if you visit every file on a periodic basis
(tar, grep whatever).
BMG
On Tue, Jun 06, 2000 at 07:40:41AM -0700, Matthew Dillon wrote:
>
> :On Tue, Jun 06, 2000 at 10:38:37PM +1200, Andrew McNaughton wrote:
> :[snip]
> :>
> :> Absence of /tmp is a pretty major oversight for any machine. Putting it
> :> on the root partition is doubly so. If there's no sepsrate partition it
> :> should at least be an alias to /var/tmp or something of the sort.
> :
> :To /usr/tmp, please, then.
> :
> :/var/tmp is designed to be not cleaned out on reboots.
> :
> :Greetz, Peter.
>
> It should be /var/tmp. It's bad enough that some bozo created two
> standard locations for temporary files (/tmp and /var/tmp), we don't
> want to add a third.
>
> Frankly, it makes no sense to have more then one. In every machine
> I've ever configured for the last umpteen years I've created a /var/tmp
> partition and softlinked /tmp to it. Programs make no real distinction
> in functionality except perhaps a couple of minor ones in our tree.
> You wind up having to put tonnes of space in both anyway so they might
> as well be the same. It just doesn't make any sense to separate them
> out nor does it make sense to introduce yet another 'standard' location
> for tmp.
>
> The cron job should generally just use a find -mtime ... -delete for
> /tmp rather then attempt to wipe it entirely. There should be no
> distinction in functionality.
>
> So it should be /var/tmp with /tmp a softlink. Works just dandy even
> in single-user mode (you create a degenerate /var/tmp in / so you get
> a working tmp even if /var is not mounted).
>
> -Matt
> Matthew Dillon
> <dillon@backplane.com>
>
>
>
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