DDoS attacks ... identifying destination ...

Gary Palmer gpalmer at freebsd.org
Thu Sep 6 14:26:55 PDT 2007


On Thu, Sep 06, 2007 at 03:48:37PM -0300, Marc G. Fournier wrote:
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> Today, I got hit by an attack, but haven't been able to easily determine whom 
> was being attacked ...
> 
> I run ipaudit to monitor bandwidth usage, so I have 'source / destination' 
> information, but I'm not finding any particularly easy way to narrow down whom 
> was being attacked ...
> 
> I run mrtg on the switch so that I know which *server* is being attacked, so I 
> need some method of being able to see whom is being attacked so that I can put 
> appropriate blocks in place ...
> 
> Is there either a command line command, or ports tool, that I can use similar 
> to top, or systat -iostat, that will help identify the IP that is being 
> attacked?
> 
> Thank you ...

net/trafshow will show throughput on various protocols on a host in a more
user friendly format than raw tcpdump alone.


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