On Sun, Dec 16, 2007 at 05:52:08PM +0100, Indan Zupancic wrote:
> What prevents them from mounting tmpfs on top of /dev, bypassing your fs?
Or binding /dev/null over nodes they want to get rid of...
> Also, if they have root there are plenty of ways to prevent an administrator
> from logging in, e.g. using iptables or changing the password.
Indeed.
BTW, tmpfs with root marked append-only and populated in normal ways on boot
would get a comparable effect without spending so much efforts. Still won't
really help if attacker gains root, but then neither will your variant.
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