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Date: Tue, 25 Nov 2003 07:36:17 -0800
From: "Zow" Terry Brugger <>
To: Michal Zalewski <>
Subject: Re: hard links on Linux create local DoS 
 vulnerability and security problems

Michal, and anyone else who would care to chip in:

> Rant: the truth is, Linux and many other systems are just not very
> suitable for providing shell-level accounts. <snip> even then,
> it is usually possible to DoS the system or other users or cause other
> inconvenience and security exposure. As such, I doubt this will get
> noticed and patched.

I think that it has been noticed, however patches are difficult as these 
features are tied to the design of the system. So allow me to put forth a 
general question: what collaborative multiuser (shared-namespace) systems 
have people worked with that didn't suffer from this problem? I'm more 
interested in real systems used in a production environment, not just some 
toy OS's that never got out of the lab.


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