[Snort-users] Same source/dest

Hutchinson, Andrew Andrew.Hutchinson at ...3639...
Wed Apr 2 07:29:12 EST 2003


Logical negation (i.e. ! == NOT).

Andrew

Andrew Hutchinson - Network Security
Vanderbilt University Medical Center
(615) 936-2856

> -----Original Message-----
> From: Brei, Matt [mailto:mbrei at ...8727...] 
> Sent: Wednesday, April 02, 2003 9:17 AM
> To: james; snort-users
> Subject: RE: [Snort-users] Same source/dest
> 
> 
> What is the ! used for?
> 
> -----Original Message-----
> From: james [mailto:hackerwacker at ...3784...] 
> Sent: Tuesday, April 01, 2003 11:45 PM
> To: snort-users
> Subject: Re: [Snort-users] Same source/dest
> 
> : I have disable 'bad traffic same src/dst' in bad-traffic 
> rules but I 
> : just want to check with you my thoughts on that.
> 
> 
> If it is just one src/dst pair that is alerting on 
> legit traffic, just modify the rule to exclude
> these IP's. In this case maybe set up a variable
> that excludes the IP's; or perhaps use a "!" ie,
> 
> alert ip any any -> !10.1.2.3/32 25
> 
> j 
> 
> 
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