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snort-users: [Snort-users] inverse snort rule

[Snort-users] inverse snort rule

From: yavuz gokirmak <ygokirmak_at_nospam>
Date: Fri May 22 2009 - 07:27:55 GMT
To: snort-users@lists.sourceforge.net


Hi all,

I am a new user of snort, I have a question about snort usage.

I have a file of pcap data ( read vie tcpdump -r)

Assume we have some rules A,B,C,D and E.

I want to log unrecognized packets, I mean, Packets which matches none of the A,B,C,D,E rules...

is it possible,

Can I take the inverse of the whole rule to create new rule like " !A and !B and !C and !D and !E" ?

thanks in advance,

yavuz...



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