--On Friday, April 12, 2002 12:15 PM -0500 Matthew 
Carpenter <[EMAIL PROTECTED]> wrote:

>
>
> Should you ALWAYS ignore activity on port 113? I know
> that Mail servers commonly respond to requests for e-mail
> with a quick authentication check on port 113 to make
> sure the requesting computer is who it says it is, but
> isn't it also an old hacker tap? Maybe if you get high
> activity you should be wary?
>
>
>
> Matthew Carpenter, MCP, CNA, A+
>
> Network Engineer and Exchange Administrator

You can always send a block activity to port 113 and send a 
reset packet back to the other mail host. If you simply 
silently drop packets to 113, your mail transfers may take 
too long.

--truman

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