more stupid network questions

[Tony Alfrey]

<snip>
>
> There's nothing that can "defeat" a determined scan.  If a system is
> connected to a network, even if no ports are open, _something_ is
> going to happen.  The scanning system may not be able to "see" you
> directly, but the fact that your gateway will "see" your card at the
> ARP level will prevent it from sending an ICMP host unreachable.  The
> mere absence of that tells a scanner your system is there.
>
> Scans are a daily occurrence.  I get hundreds if not thousands per
> day. Some are innocent (like another mail system scanning my mail
> system to see if it really is a mail server - anti-spam programs will
> do this, like milter-sender that I use), and some are not.  Paranoia
> is good if you don't get too paranoid.
>
> Ciao,
>
> David A. Bandel

O.K.  Thanks!

-- 
Tony Alfrey
tonyalfrey at earthlink.net
"I'd rather be sailing"