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Re: Re[2]: 11 years of inetd default insecurity?
From: Paul Szabo (psz
maths.usyd.edu.au)
Date: Mon Sep 08 2003 - 14:11:12 CDT
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3APA3A <3APA3ASECURITY.NNOV.RU> wrote:
>>> -R 0 -s your_ad_can_be_here
>
>> Your cure is worse than the disease: rate limiting allows a DoS
>> against the service, no limit allows a DoS against the whole
>> machine.
>
> -s limits number of processes invoked from same IP. You can additionally
> use -c to prevent distributed attack. It doesn't allow to DoS box and
> doesn't disable service for 10 minutes.
Note that my (DEC/Compaq/HP Tru64) inetd does not have -c or -s options.
The only safe way is to use a sensible -R and tcp_wrappers. Or upgrade to
Linux and xinetd...
Cheers,
Paul Szabo - pszmaths.usyd.edu.au http://www.maths.usyd.edu.au:8000/u/psz/
School of Mathematics and Statistics University of Sydney 2006 Australia
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