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Old 02-28-2008, 03:01 AM   #1
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Iptables and DMZ

Hello All

I really really need help on setting up a dmz. I have the following:

eth0 - internal network (*.*.225.20)
eth1 - connect to dsl router (*.*.224.7)
eth2 - dmz (*.*.223.27)

In my dmz I have a web server running apache.

I want to be able to access the webpage from the internet, i have a domain and external dns servers as well as a internal dns server.

What must the iptables look like to forward http request from the internet(eth1) to the dmz (eth2)

Hope this make sense
Old 02-28-2008, 03:09 AM   #2
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Try reading this
Old 02-28-2008, 05:39 AM   #3
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Originally Posted by scroogie View Post
What must the iptables look like to forward http request from the internet(eth1) to the dmz (eth2)
It should look like any of the port-forwarding illustrations which are available all over the Web.

Something like this (assuming a FORWARD policy of DROP):
iptables -t nat -A PREROUTING -p TCP -i eth1 --dport 80 -j DNAT \

iptables -A FORWARD -m state --state RELATED,ESTABLISHED -j ACCEPT

iptables -A FORWARD -p TCP -i eth1 -o eth2 --dport 80 \
-d -m state --state NEW -j ACCEPT

Last edited by win32sux; 02-28-2008 at 05:41 AM.


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