Solved

DMZ SMTP Gateway and rules

Posted on 2004-08-25
2
276 Views
Last Modified: 2010-04-08
So i have my SMTP gateway server on the DMZ, with a rule that allows 25 traffic in to the DMZ.  I then have the SMTP server pointing to a smart host on the inside network which is my exchange server.  I only have one NIC.  I am going to assign that NIC a public DMZ address and set the gateway to the firewall.  I will then setup another rule allowing the traffic in from the firewall DMZ to the lan.  Will the firewall be able to route the smtp traffice back into the LAN?  it is a sonicwall 3060.  Or do i need to set the server with 2 NICS?  How does that work?  Two NICS does not make sense to me.  I am assuing the firewall can route the traffic back into the LAN.
thanks

trying to learn how this works with a server in the DMZ and One NIC
0
Comment
Question by:YankeeFan03
2 Comments
 
LVL 11

Accepted Solution

by:
PennGwyn earned 250 total points
Comment Utility
Yes, that's all correct.  The idea of a multi-legged firewall is to route traffic between the DMZ and the internal network back through the firewall for filtering.  A second NIC would offer a path that bypasses this security.

0
 

Author Comment

by:YankeeFan03
Comment Utility
great thankyou
0

Featured Post

What Should I Do With This Threat Intelligence?

Are you wondering if you actually need threat intelligence? The answer is yes. We explain the basics for creating useful threat intelligence.

Join & Write a Comment

Suggested Solutions

Wikipedia defines 'Script Kiddies' in this informal way: "In hacker culture, a script kiddie, occasionally script bunny, skiddie, script kitty, script-running juvenile (SRJ), or similar, is a derogatory term used to describe those who use scripts or…
The DROP (Spamhaus Don't Route Or Peer List) is a small list of IP address ranges that have been stolen or hijacked from their rightful owners. The DROP list is not a DNS based list.  It is designed to be downloaded as a file, with primary intention…
This demo shows you how to set up the containerized NetScaler CPX with NetScaler Management and Analytics System in a non-routable Mesos/Marathon environment for use with Micro-Services applications.
This tutorial demonstrates a quick way of adding group price to multiple Magento products.

762 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

6 Experts available now in Live!

Get 1:1 Help Now