Mail Attack

Tenacious One tenaciousone at gmail.com
Tue Aug 23 17:08:15 UTC 2005


Jessica,
Implement iptables to send them to neverneverland - nslookup the
offending IP/domain and reject any traffic from that offender...

-- 
/==========The One===========\
"..I don't care your a PhD...put you're hands up, and step away from
my keyboard..."


On 8/23/05, Jessica Zhu <jessica at mathforum.org> wrote:
> Hi,
> 
> It looks like we are experiencing the mail attack now.
> 
> In our maillog, we have a lot of User Unknown message like the following.
> 
> Aug 23 11:52:25  s1 sendmail[2110]: j7NFqPL02110:
> <Oscard at mathforum.org>... User unknown
> Aug 23 11:52:25 s1 sendmail[2110]: j7NFqPL02110: from=<>,
> size=17601, class=0, nrcpts=0, proto=ESMTP, daemon=MTA,
> relay=mail.vis-inc.net [66.77.28.202]
> 
> It looks like that all the from is <>, does anyone have the way to fight
> against it.
> 
> Jessica




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