Re: [Exim] FYI address probe seen

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Autor: Tony Earnshaw
Data:  
Para: exim-users
Asunto: Re: [Exim] FYI address probe seen
man, 2003-01-27 kl. 20:06 skrev John W Baxter:

> They're back, this time from 24.158.245.8.  And a different envelope sender
> local part pattern (sample):
>     okaaaa:rp
> Exim logs the : as a syntax error.  This one slowed our mail system enough
> that it triggered an alert from our round trip mail monitor, letting me see
> it in action.  Same netblock as before.  Sigh.


Firewall rule? Linux's Netfilter (2.4 and above) can cope with this sort
of thing beautifully - not more than that many new smtp connections per
time period, then block.

Best,

Tony

--

Tony Earnshaw

When all's said and done ...
there's nothing left to say or do.

e-post:        tonni@???
www:        http://www.billy.demon.nl