Snort mailing list archives
RE: Alerts from DMZ
From: "Petriz, Pablo" <ppetriz () siscat com ar>
Date: Tue, 20 Nov 2001 18:06:05 -0300
Thank you Erek, it helps me a lot! but let me graph it to understand it better: External Net ----- Firewall --------- Internal Net | | [H]--(1)-- Snort --(2)--´ | DMZ [H]Hub in DMZ (1)Read only cable from hub to stealth nic (IP 0.0.0.0) (2)Standard cable from 2nd NIC to Internal Net It looks strange but secure. I think that your comment on "Make sure your firewall rules don't allow _any_ traffic to the snort box to pass." it´s unnecessary because for the FW the Snort box doesn´t exists. It´s that right? Thank you again Erek. PABLO -----Mensaje original----- De: Erek Adams [mailto:erek () theadamsfamily net] Enviado el: martes 20 de noviembre de 2001 13:50 Para: Petriz, Pablo CC: snort-users () lists sourceforge net Asunto: Re: [Snort-users] Alerts from DMZ On Tue, 20 Nov 2001, Petriz, Pablo wrote:
I want to install Snort with a stealth interface to sniff on DMZ and i want Snort to send alerts to some NT boxes on the Internal Net in a secure (best secure) way. I have this instalation: External Net ----- Firewall ------- Internal Net | |- Snort | DMZ The FW allows some traffic btw ExtNet<->DMZ, some from IntNet->DMZ and blocks btw ExtNet<->IntNet.
Add a second NIC card on the snort box. Connect 2nd NIC to the internal net with an IP. Make sure your firewall rules don't allow _any_ traffic to the snort box to pass. Build a read only cable and place that cable on your stealth interface. Now, your box will be happy, you can connect to it from inside your net, but no other way. Hope that helps! ----- Erek Adams Nifty-Type-Guy TheAdamsFamily.Net _______________________________________________ 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:
- Alerts from DMZ Petriz, Pablo (Nov 20)
- Re: Alerts from DMZ Erek Adams (Nov 20)
- <Possible follow-ups>
- RE: Alerts from DMZ Petriz, Pablo (Nov 20)
- RE: Alerts from DMZ Erek Adams (Nov 20)
- RE: Alerts from DMZ Abe L. Getchell (Nov 20)
- RE: Alerts from DMZ Erek Adams (Nov 20)