Snort mailing list archives
Re: Re[2]: Snort Filtering
From: Neil Dickey <neil () geol niu edu>
Date: Tue, 29 Apr 2003 17:36:39 -0500 (CDT)
Michale <michale () pln cc> wrote:
I did (and am again) using the newest RULES downloaded from snort.org.
OK, that helps me to know what your doing.
So, maybe the approach I am looking is to have it use THAT ruleset, but then put in domains and IPs that I want it to log activity from... Is that a similiar procedure to the one of NOT logging specified domains and IPs??
Filtering can be done by inclusion or exclusion. You have to decide which method will work best for you, doubtless based at least in part on how big the domain you're interested in is compared with the rest of the world. If you *only* want to look at traffic between a specific domain and your home box, say, defining these variables in snort.conf should get you what you want: var HOME_NET ip.of.your.box var EXTERNAL_NET [ip.of.other.domain/16,ip.of.another.box,yet.another.ip.0/24] With this setup, most of the existing rules would then alert only on traffic between EXTERNAL_NET and HOME_NET. Obviously, only those rules which use EXTERNAL_NET and H0ME_NET would be affected. NOT logging specified domains means using something like the default values ... var HOME_NET ip.of.your.box var EXTERNAL_NET !$HOME_NET ... and then writing pass rules to avoid alerting on traffic you're not interested in. Best regards, Neil Dickey, Ph.D. Research Associate/Sysop Geology Department Northern Illinois University DeKalb, Illinois 60115 ------------------------------------------------------- This sf.net email is sponsored by:ThinkGeek Welcome to geek heaven. http://thinkgeek.com/sf _______________________________________________ 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
Current thread:
- Snort Filtering Michale (Apr 29)
- Re: Snort Filtering Matt Kettler (Apr 29)
- <Possible follow-ups>
- Re: Snort Filtering Neil Dickey (Apr 29)
- Re[2]: Snort Filtering Michale (Apr 29)
- Re: Re[2]: Snort Filtering twig les (Apr 29)
- Re[2]: Snort Filtering Michale (Apr 29)
- RE: Snort Filtering L. Christopher Luther (Apr 29)
- Re: Re[2]: Snort Filtering Neil Dickey (Apr 29)