OSEC

Neohapsis is currently accepting applications for employment. For more information, please visit our website www.neohapsis.com or email hr@neohapsis.com
 
Re: [Snort-users] Can snort be used for single host Intrusion Detection?(A newbie Question)

From: Erek Adams (ereksnort.org)
Date: Thu Jul 03 2003 - 15:16:17 CDT

On Thu, 3 Jul 2003, [iso-8859-1] Louis Lam wrote:

> Okay, thanks, I see what you mean. I tried that too
> but still manage to pick up attack traffic to another
> host. Here is the scenario:
>
> Suppose the host that has snort installed is
> 192.168.1.10, and i set my HOME_NET to
> 192.168.1.10/32.
>
> Then i tried to use another machine 192.168.1.20 to
> nmap another machine 192.168.1.30, the snort on
> 192.168.1.10 still can pick up the traffic and
> generate alerts.
>
> I understand that snort is more of a Netword based
> IDS, but lets assume that i'm in a sad case where I
> can't even trust my neighbours in the same network.
> what other configuration needs to be done?

Honestly it sounds like a misconfig issue. Once you make the change in
snort.conf, are you restarting Snort? If you're not, you need to. What
is your EXTERNAL_NET set to? If it's still at 'any' change it to
'!$HOME_NET'.

Cheers!

-----
Erek Adams

   "When things get weird, the weird turn pro." H.S. Thompson

-------------------------------------------------------
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/psa00100006ave/direct;at.asp_061203_01/01
_______________________________________________
Snort-users mailing list
Snort-userslists.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