Bandwidth hit in natd/ipfw on 4.4-RELEASE

Ruben de Groot mail25 at bzerk.org
Fri Mar 26 06:52:55 PST 2004


On Fri, Mar 26, 2004 at 10:43:56AM -0400, Matt Coe, CCNA typed:
> Ruben de Groot wrote:
> 
> >4.4-RELEASE is quite old. Have you considered the possibility that you
> >got rooted?
> > 
> >
> I'm sure it's /possible/, but extraordinarily unlikely. The server's 
> only been three days and I'm on a university resnet; I'd guess that no 
> port below 1024 is accessible from outside my house.. and the most 
> computer-literate people in this house are either Counter-Strike addicts 
> or me. There are very few Computer Science students in this house, and 
> I'm probably the only person who actively uses something other than 
> WinXP or MacOS X.

So maybe *they* got infected by some bandwidth-hungry virus/trojan/worm ?

Seriously, have you tried investigating (netstat/sockstat/tcpdump are
all good tools for this) what exactly is consuming so much bandwidth
on your system?

Ruben



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