Snort mailing list archives
Re: 2.0 bug in flow:?
From: Matt Kettler <mkettler () evi-inc com>
Date: Thu, 31 Jul 2003 20:43:34 -0400
At 08:38 AM 8/1/2003 +1200, Jason Haar wrote:
Hmm, well that's where I get confused. I have stream4 and stream4_reassemble enabled, but *don't* run snort with the "-z" option. I have some alerts that need to trigger off "flag:S" - which I think stops working when I enable "-z".
You shouldn't need -z to make flows work. The reason -z exists is you can use it to essentially add "flow: established" to every rule in the ruleset without having to edit them. This was probably only useful before flows became fairly common in the ruleset.
Basically I have some alerts that I want to trigger when DMZ hosts attempt to make outgoing connections. I don't care if they succeed or not - the mere presence of a SYN packet is enough reason to alert. How can I use "-z" and still do that?
you don't, but you shouldn't need -z. ------------------------------------------------------- This SF.Net email sponsored by: Free pre-built ASP.NET sites including Data Reports, E-commerce, Portals, and Forums are available now. Download today and enter to win an XBOX or Visual Studio .NET. http://aspnet.click-url.com/go/psa00100003ave/direct;at.aspnet_072303_01/01 _______________________________________________ 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:
- 2.0 bug in flow:? Jason Haar (Jul 31)
- Re: 2.0 bug in flow:? Matt Kettler (Jul 31)
- Re: 2.0 bug in flow:? Jason Haar (Jul 31)
- Re: 2.0 bug in flow:? Matt Kettler (Jul 31)
- Re: 2.0 bug in flow:? Jason Haar (Aug 01)
- Re: 2.0 bug in flow:? Jason Haar (Jul 31)
- Re: 2.0 bug in flow:? Matt Kettler (Jul 31)