Forkbomb??
Simon Santoro
Simon.Santoro at poste.it
Sun Apr 3 22:38:25 UTC 2005
Stuart Bishop wrote:
> I don't believe that Ubuntu out of the box should be subject to DOS, either
> through maliciousness or user errors. At the moment you can lock your
> machine by pointing firefox to the wrong web page (lots of images and
> firefox quickly chews all available RAM, starts thrashing and GNOME locks up
> and logins time out). Similar DOS occurs when a programmer makes a common
> mistake and forkbombs their machine or creates a nasty memory leak. Sure,
> there will be corner cases where people don't want these limits or need to
> increase them (which they can), but the current situation where out of the
> box the user can lock up their system so badly they need to power cycle
> without shutting down needs to be fixed.
In this case remember to also fix the following DOS:
grep hello /dev/zero
How? Limit the ammount of RAM the user is allowed to use? Heck... I
bought 512MB because I want to actually USE it.
And this DOS, that uses 100% CPU for no appearent reason:
while true; do ls; done;
How? Limit the ammount of CPU the user is allowed to use? Heck... I have
a 1.4GHz Centrino because I want to USE it!
And this DOS:
rm -rf ~
How? Remove write access to my files because I could delete them.
Well... got the point?
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