Snort mailing list archives
Re: Snort Configurations
From: Alex Tatistcheff <alext () pobox com>
Date: Wed, 22 Sep 2010 20:45:40 -0600
You can suppress the alerting and not affect the normalization (the important part) of the http_inspect preprocessor by commenting out the rules in the preprocessor.rules file. Or you can suppress the output in threshold.conf with something like: suppress gen_id 119, sig_id 13 The first option is what I would recommend. Alex Tatistcheff alext () pobox com The most terrifying words in the English language are, "I'm from the government and I'm here to help." -Ronald Reagan On Wed, Sep 22, 2010 at 1:01 PM, Greg Lane <greglane () laneconstinc com>wrote:
Well there are 3 types of http_inspects that I am getting mainly. http_inspect: LONG HEADER, http_inspect: NON-RFC DEFINED CHAR, http_inspect: OVERSIZE REQUEST-URI DIRECTORY. Everyone of the sources are from inside my network. Many of them are to amazon EC, quantserve.com(cookie related), yahoo, google, facebook, and Pandora. So you can see that most of the traffic is legit and it isn't being triggered from outside the domain. I'm just not sure how to cut down on the number of alerts. When I get that done I will move on to the next but I am trying to do this in steps so that I can understand everything that is going on Greg Lane IT Manager Lane Enterprises Email: greglane () laneconstinc com Phone: (228)872-2414 -----Original Message----- From: waldo kitty [mailto:wkitty42 () windstream net] Sent: Wednesday, September 22, 2010 1:21 PM To: snort-users () lists sourceforge net Subject: Re: [Snort-users] Snort Configurations On 9/22/2010 12:39, Greg Lane wrote:I’m starting to learn how to tune my Snort install and it is a slowprocess. Ihave alerts like crazy because I know it needs to be tuned and Iespecially havea lot of http_inspect alerts coming up. I’ve been reading and from what Icangather if you don’t have a websever you may not really need this inoperation oram I wrong?the answer is "it depends"... it depends on if you want to monitor outbound http traffic to possibly catch infestations on your network that are reporting in or attacking remote http servers... you might also catch (and be able to prevent) internal machines that are being redirected to driveby sites that would (attempt to) load them with infestation materials...If I am wrong then what is the best possible solution for me to cut down most of the alerts which are false positives so to speak or aren’t dangerous at all? This will probably be one of many questions concerningconfigscoming to an email box near you.false positives need to be reported to those who write those rules so they can be looked into and adjusted if necessary... ------------------------------------------------------------------------------ Start uncovering the many advantages of virtual appliances and start using them to simplify application deployment and accelerate your shift to cloud computing. http://p.sf.net/sfu/novell-sfdev2dev _______________________________________________ Snort-users mailing list Snort-users () lists sourceforge net Go to this URL to change user options or unsubscribe: https://lists.sourceforge.net/lists/listinfo/snort-users Snort-users list archive: http://www.geocrawler.com/redir-sf.php3?list=snort-users ------------------------------------------------------------------------------ Start uncovering the many advantages of virtual appliances and start using them to simplify application deployment and accelerate your shift to cloud computing. http://p.sf.net/sfu/novell-sfdev2dev _______________________________________________ Snort-users mailing list Snort-users () lists sourceforge net Go to this URL to change user options or unsubscribe: https://lists.sourceforge.net/lists/listinfo/snort-users Snort-users list archive: http://www.geocrawler.com/redir-sf.php3?list=snort-users
------------------------------------------------------------------------------ Start uncovering the many advantages of virtual appliances and start using them to simplify application deployment and accelerate your shift to cloud computing. http://p.sf.net/sfu/novell-sfdev2dev
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Current thread:
- Snort Configurations Greg Lane (Sep 22)
- Re: Snort Configurations waldo kitty (Sep 22)
- Re: Snort Configurations Greg Lane (Sep 22)
- Re: Snort Configurations Alex Tatistcheff (Sep 22)
- Re: Snort Configurations Greg Lane (Sep 23)
- Re: Snort Configurations Joel Esler (Sep 23)
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- Re: Snort Configurations Greg Lane (Sep 23)
- Re: Snort Configurations Joel Esler (Sep 23)
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- Re: Snort Configurations Greg Lane (Sep 23)
- Re: Snort Configurations Joel Esler (Sep 23)
- Re: Snort Configurations Greg Lane (Sep 23)
- Re: Snort Configurations Eoin Miller (Sep 23)
- Re: Snort Configurations Russ Combs (Sep 24)
- Re: Snort Configurations Greg Lane (Sep 24)
- Re: Snort Configurations Greg Lane (Sep 22)
- Re: Snort Configurations waldo kitty (Sep 22)