Re: 2 NIC Card security ?

From: Benson Lei (
Date: 01/08/04

Date: Fri, 9 Jan 2004 00:21:51 +0800

No, I want to use the configuration for my Email Server, since my network
force it to be exposed to Internet .

Installing the 2nd NIC wants speed the connection between LAN and the Email

Thank you for your information.

"N1POP" <>
> Benson Lei wrote:
> > I installed two NIC Cards with the RH Linux V90, but with no Security
> > during the installation.
> >
> > Is there any vulnerability for hacking ?
> The simple answer is Yes, because once a vulnerability is discovered and
> exploited on either port, then the attacker could access the other NIC and
> network.
> > Is there any route between LAN & WAN if I use the default setting
> > ( no IP route, no Firewall, no Router, no RAS ) ?
> I have used RH on a 2-NIC PC only once, and I recall that NIC
> and multi-NIC routing were not automatic.
> Will you be using this PC for anything other than as a gateway? If so,
> might consider installing dedicated software like Smoothwall or IPCop that
> will help secure your network.