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Date:      Sat, 16 Jun 2001 15:27:59 -0700 (PDT)
From:      La Place <a_trans2001@yahoo.com>
To:        freebsd-newbies@freebsd.org
Subject:   Re: Securing Unix
Message-ID:  <20010616222759.92368.qmail@web14807.mail.yahoo.com>
In-Reply-To: <20010616002154.B13838@hades.hell.gr>

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--- Giorgos Keramidas <keramida@ceid.upatras.gr> wrote:
> On Fri, Jun 15, 2001 at 08:46:06AM -0700, Karlo Espiritu wrote:
> > What file do I need to edit to disable the Ctrl+Alt+Del command? Also how do
> > I make FreeBSD not respond to ping requests?
> > I'm using FreeBSD 4.3.  
> 
> You can edit the keyboard map and replace `boot' with `nop' where you
> find it.  For instance, in my 4.3-STABLE the keymap of the console
in addition to that, if you want to ignore [specific] ICMP packets, I recommend that you enable
IPFW or IPF in the kernel and block according to protocol (ICMP).

Bruce\


> contains:
> 
>     # kbdcontrol -d < /dev/ttyv0 | grep boot
>       083   del    '.'    '.'    '.'    '.'    '.'    boot   boot    N
>       103   fkey61 fkey61 fkey61 fkey61 fkey61 fkey61 boot   fkey61  O
> 
> Change the keymap to your taste (replacing `boot' with `nop'), load
> the new keymap, and you're ready to go :)
> 
> -giorgos
> 
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