[Snort-users] Portscan preprocessor and false positives
ag-snort at ...7149...
Tue Oct 15 20:34:05 EDT 2002
im assuming from your e-mail this is spp_portscan not spp_portscan2
preprocessor portscan-ignorehosts: x.x.x.x
also.. Snort has a _manual_ not just a FAQ... remember that.. avaialbe
via html or pdf...
hope it helps
Ben Keepper wrote:
>I didn't see this covered in the FAQ.
>We are receiving a lot of spp:portscan alerts when internal users go to
>sites like msn.com (go figure).
>All the separate banner ads are showing up as separate IP and the
>portscan preprocessor fires. I have tried increasing the threshholds to
>I could add HOME_NET to the ignore hosts variable, but would prefer to
>just have the preprocessor for sensor ignore what it thinks are port
>scans on port 80.
>So can I get the portscan preprocessor to ignore to ignore port 80?
>Thanks to everybody for your help.
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