<div dir="ltr">However if you are referring to packet sniffers there is no solid way of blocking them. <br><br><div class="gmail_quote">On Sun, Jun 21, 2009 at 3:49 AM, Joseph L. Casale <span dir="ltr"><<a href="mailto:JCasale@activenetwerx.com">JCasale@activenetwerx.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"><div class="im">>In other words, anyone hitting those ports that are not being used at all<br>
>except by our sniff protector, would allow instant banning.<br>
><br>
>So...does something like this exist?<br>
<br>
</div>I don't know of a program that specifically listens to defined ports and<br>
acts on that, but fail2ban would accomplish the end result adequately.<br>
<font color="#888888"><br>
jlc<br>
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