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Old 06-20-2004, 07:46 AM   #1
ppuru
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Registered: Mar 2003
Location: Beautiful BC
Distribution: RedHat & clones, Slackware, SuSE, OpenBSD
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Snort Configuration


Which one is a better (secure) configuration

SnortEnd
-------------
System - with 2 NICs
External NIC - no IP
Internal NIC - LAN IP
OS - Linux/OpenBSD
Snort with mysql configured as client

BackEnd
------------
System with 1 NIC
OS -Linux/OpenBSD
MySQL server
ACID & related software (JPGraph, AdoDB ...)
Apache, PHP

OR

Everything on one system
-----------------------------------
System - with 2 NICs
OS - Linux/OpenBSD
External NIC - no IP
Internal NIC - LAN IP
MySQL server
ACID & related software
Apache, PHP
 
Old 06-20-2004, 09:06 AM   #2
Technonotice
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Registered: Mar 2004
Location: UK
Distribution: Debian Unstable
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The point of least security is where your Snort box or the box doing the analysis is connected to a nonsecure environment (possibly your LAN). In your case, I would say having the second config, all on one box is more secure - provided it had the LAN card removed. The LAN card would be the point of least security in both setups as it's an open, configured interface to the network.

The best Snort config you could get (AFAIK) would be to put a box with just one NIC, unconfigured, onto the place you want to watch. Any direct network access to the box would be a possible point of weakness.

And in fact, if you chose the split configuration with a new, private LAN between the Snort PC and the ACID one, there's another possible chance for an attacker to gain access.

Last edited by Technonotice; 06-20-2004 at 09:13 AM.
 
  


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