Snort mailing list archives
Re: newbie question about $HOME_NET
From: "Daniel Qian" <daniel.qian () supracanada com>
Date: Mon, 5 Oct 2009 12:02:30 -0400
Perhaps I did not make it clear. What I really want to detect is for those traffic between my network and the Internet, and in both direction A lot of times when a host is compromised it will be made to attach other people on the Internet and I want to detect this kind of activities as well. For traffic between my own hosts I am thinking to set up another snort box tapping on the inside VLAN protected by my Cisco ASA firewall. The Cisco ASA currently has an IPS module to protect that VLAN from outside. Thanks, Daniel ----- Original Message ----- From: JJ Cummings To: Daniel Qian Cc: snort-users () lists sourceforge net Sent: Monday, October 05, 2009 10:33 AM Subject: Re: [Snort-users] newbie question about $HOME_NET In that case, you still want your $HOME_NET variable set to your network block that you are "protecting". But you should set your $EXTERNAL_NET to any.. this will let you see internal attacks against internal hosts (of course this assumes that you have your SPAN session / TAP setup to see this internal traffic). On Mon, Oct 5, 2009 at 8:11 AM, Daniel Qian <daniel.qian () supracanada com> wrote: I am implementing Snort on our hosting network at the point where our two IPS links are connected - all traffic flowing on the two VLANs for ISPs are SPANed to the snort sniffing port. Some documents recommend setting $HOME_NET to my network block and a lot of detection rules actually have reference to this variable. The question is, if I want to detect bad traffic originating from a compromised host on my network should this variable be set to the default ANY? or is it common and proper way in this situation? Thanks in advance Daniel ------------------------------------------------------------------------------ Come build with us! The BlackBerry® Developer Conference in SF, CA is the only developer event you need to attend this year. Jumpstart your developing skills, take BlackBerry mobile applications to market and stay ahead of the curve. Join us from November 9-12, 2009. Register now! http://p.sf.net/sfu/devconf _______________________________________________ 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
------------------------------------------------------------------------------ Come build with us! The BlackBerry® Developer Conference in SF, CA is the only developer event you need to attend this year. Jumpstart your developing skills, take BlackBerry mobile applications to market and stay ahead of the curve. Join us from November 9-12, 2009. Register now! http://p.sf.net/sfu/devconf
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Current thread:
- newbie question about $HOME_NET Daniel Qian (Oct 05)
- Re: newbie question about $HOME_NET JJ Cummings (Oct 05)
- Re: newbie question about $HOME_NET Daniel Qian (Oct 05)
- Re: newbie question about $HOME_NET Joel Esler (Oct 05)
- Re: newbie question about $HOME_NET Daniel Qian (Oct 05)
- Re: newbie question about $HOME_NET Daniel Qian (Oct 05)
- Re: newbie question about $HOME_NET JJ Cummings (Oct 05)