On Mon, 31 Aug 2009 21:58:36 +0300
Pavel Gulchouck <gul@???> wrote:
> On Mon, Aug 31, 2009 at 08:59:32AM +0900, Anthony G. Nickolayev writes:
>
> >> Is it possible to specify source interface for callout check?
> > Be carefull with sender callout verification. Take a look at this
> > http://www.backscatterer.org/?target=sendercallouts
>
> Thank you.
> And what about resolving sender domain? Sending icmp echoreply,
> icmp unreachable? Sending 25/tcp synack? ;-)
> All this things can be used for DDoS-attacks.
> I don't agree with the backscatterer.org point about callout.
Whould you be agree or not, some large mail-servers could blacklist IP
of your server based on this "scans". And i agree with such policy :)
----
--
Николаев Антон
системный программист
телематических служб
ОАО "АК Мобилтелеком"
+7-(3012)-29-70-21
dodger@???
--
Anthony G. Nickolayev
telematic services engineer
JSC "AC Mobiltelecom"
+7-(3012)-29-70-21
dodger@???
