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Date: Tue, 30 Jan 2007 17:23:50 +0100
From: "Dr. Markus Waldeck" <waldeck@gmx.de>
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Subject: Re: top delay value
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> Well, an unprivileged user can achieve the same effect by
> typing "while :; do :; done".  There are a thousand ways
> to waste CPU time, and there is no way to prevent a user
> >from doing it.

It is not the same effect.

You describe fork bombing.
Many forked processes eat up the CPU.

I could limit the number of process via 

:maxproc=100: \

in /etc/login.conf

> If you want to make top more secure, type "chmod 700 /usr/bin/top".

:-)

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