Messages in this thread |  | | From | lilo <> | Date | Sun, 21 Jul 1996 10:44:25 -0500 (CDT) | Subject | Re: Dumping /dev/zero to the console |
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On Thu, 18 Jul 1996, Webmaster wrote:
> That's basically the same as the "grep whatever /dev/zero" discussed > on this list a while back. > > Is there any reason /dev/zero should be readable by normal users, or > is it safe to chmod it so that nobody pulls this stunt? Just > wundering!
/dev/zero can be used for a variety of things. It contains no sensitive information (only binary zeroes :) and hence conceptually its access should not be restricted.
There are a lot of other denial-of-service attacks that users can employ on Linux. If there's any interest in reducing the effectiveness of denial-of-service attacks (and improving Linux's handling of resource-exhaustion situations) that might be a better approach than simply denying access to this device.
lilo
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