Re: Simple DoS...out of resources?
Myrdraal (myrdraal@jackalz.dyndns.org)
Mon, 8 Mar 1999 14:28:54 -0500
On Mon, Mar 08, 1999 at 01:39:24PM -0500, rewt wrote:
Hi,
> It is very easy to crash a system simply by viewing a large file with
> editor such as pico. It will eat up all the resources and do some
> unpredictible things. In my case I viewed a 100mb file as it was reading
> it, it filled up all the swap space which is 48mb. It killed most of the
> processes including sendmail, sshd, X, syslog. Does anyone have any idea
> how can i protect myself against that kind of DoS? My configuration:
> P100, 48mb ram, 48mb swap running on kernel 2.2.2.
You need to set user resource limits. This isn't a kernel problem. See
the "ulimit" command if you use bash. Other shells probably use a different
command.
-Myrdraal
--
Linux jackalz 2.2.2 #73 Tue Feb 23 03:22:39 EST 1999 i586 unknown
2:27pm up 13 days, 10:54, 29 users, load average: 0.06, 0.09, 0.08
**[ Linux: Because a penguin makes a better mascot than Satan. ]**
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