Snort mailing list archives

Re: Advice on Snort Inline


From: Eric Hines <eric.hines () appliedwatch com>
Date: Fri, 08 Sep 2006 09:05:47 -0500

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Joel,

You forgot to mention the cool part of being able to rename the devices
from eth1 and eth2 to ips0 and ips1 :)

Mark: Edit the /etc/sysconfig/network-scripts/ifcfg-eth1 and ifcfg-eth2
files, rename them to ifcfg-ips0 and ifcfg-ips1 and change the line in
the files that says: DEVICE=eth1 and DEVICE=eth2 to DEVICE=ips0 and
DEVICE=ips1 respectively

Although, I've been struggling with how to rename a bond0 interface to
mgt0 ... :/ :)



Best Regards,

Eric S. Hines, GCIA, CISSP
CEO, President, Chairman
Applied Watch Technologies, LLC


- --------------------------------------------------

Eric S. Hines, GCIA, CISSP
CEO, President, Chairman
Applied Watch Technologies, LLC

- --------------------------------------------------

Email:   eric.hines () appliedwatch com
Address: 1095 Pingree Road
         Suite 221
         Crystal Lake, IL
         60014
Tel:     (877) 262-7593 ext:327
Local:   (847) 854-5831
Fax:     (847) 854-5106
Web:     http://www.appliedwatch.com

- --------------------------------------------------
Security Management for the Open Source Enterprise





Joel Esler wrote:
Mark,

Thanks for emailing the list.

3 nics is the the way you want to go, one nic in, one nic out.  There
are some configuration guides to Snort inline out there (try the Snort
manual, it's a good starting point), all you have to do is basically
have iptables forward everything to "QUEUE" then Snort reads from that
QUEUE.

Fedora Core 5 will work just fine, just make sure you are running the
bare minimum of services on it, as you want your Snort box to be as fast
as possible for inline mode.

Joel


Mark Rohrbeck wrote:
Hi all, 

I have 2 IDS systems in place and tuned to their specific networks, the next
step I want to take is running them with Snort_inline. I am just a little
unsure on how to do this. I would prefer to use Fedora Core 5 as the OS but
open to suggestions. I mainly want to find out if I can run Snort_inline on
one box? 

The networks are pretty small with 10 - 50 XP PC's and server 2003 / 2000,
we run Sonicwall firewalls and I have the Sensors behind the firewall. The
picture I have in my mind is having 3 nics in the machine, 1 for Admin and
the other 2 for Snort inline. Am I heading in the right direction here?

Any advice / help GREATLY appreciated.

Marklar


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