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Dealing with port/vulnerability scans
From: Tony Raboza <tonyraboza () gmail com>
Date: Tue, 24 Nov 2009 20:29:18 +0800


I'm tuning my IDS and I'm thinking of taking out the portscan/web
vulnerability scan rules.  Why?  Because, yes - I know that somebody
may be scanning my network - but, what can I do about it?

1.  Block the IP? But, what if its NAT - meaning only 1
workstation/user did the port scanning, I would be blocking all the
possibly valid users behind that IP.
2.  Report it to their ISP or to them?  Then what?

I want my IDS console not to be too cluttered that's why I'm tuning
it.  If its too cluttered - I might be missing out the really
important alerts.

What about you?  How do you deal with port/vulnerability scans?  Is it
illegal btw?



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