Debian-Ubuntu weakness to filesystem corruption recovery
manuelsspace-listas at yahoo.com
Fri Jun 2 04:30:06 BST 2006
El día Friday 12 May 2006 16:48, Stephan Hermann escribió:
> good evening,
> On Friday 12 May 2006 20:43, chantra wrote:
> > Hi,
> > I found something wrong with the way debian handled backups for
> > directories like /var/lib/dpkg.
> > /etc/cron.daily/standard use to save it to /var/backups
> > but then *what happens when /var get corrupted* ?
> > Do we have to lose variable datas and the whole system, or should we
> > be able to keep the system and just deal with the /var bit?
> > I made an article about this, you can find it on
> > http://www.debuntu.org/2006/05/12/48-debian-ubuntu-weakness-to-filesy
> I read your article, and as far as I can see there is just one mistake:
> running a server in a production environment is forcing you to create
> external backups actually. /etc/ /var/<some very special directories>.
> You actually don't rely on backups made by the system iteself somewhere
> on the system. that's a nono :)
> Oh and /tmp should be on it's on partition, to mount it with "noexec".
> many worms and backdoors in some wide spreaded web applications are
> using this, and somehow it's accessible if it's not mounted with the
> option "noexec"
> for the laptop or desktop machine, the reinstallation is not a big deal,
> the big deal for laptop and desktop machines is more /home, where all
> the real data is sleeping.
Recently I've to go back and remove noexec. .deb's post-configurations fails
because some of they create executable temporary scripts
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