On Sep 6, 2007, at 1:48 PMSep 6, 2007, 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 ...


tcpdump might be of use.

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Eric F Crist
Secure Computing Networks


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