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set up my DMZ

DISCUSSION [email protected] 2 participants 2 messages Sep 17, 2004

lore
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lore
#0 lore raw

I've a DMZ with two server, I would like to acces them through my iptables firewall.

IP_serve1_DMZ =192.168.2.2
IP_serve2_DMZ =192.168.2.3

IP_server1_public = x.x.x.52 IP_server2_public = x.x.x.53 (x is for privacy..)

My firewall has

eth1 internet interface = x.x.x.50 eth0 dmz interface = 192.168.2.1

I need to have my server access with their pubbic IP, but I've only eth1 as inteface to internet.

I read that I can't use alias in iptables rules (like eth1:1 etc) , then what kind of rules have I to write to solve my problem?

I did this script but is it not working, what do you think is wrong in it?

#!/bin/bash

iptables -F

iptables -t nat -F

iptables -t mangle -F

# filter table everythingd is ACCEPT  only to follow the easyest way#

iptables -P INPUT ACCEPT
iptables -P FORWARD ACCEPT
iptables -P OUTPUT ACCEPT

## make DMZ -> internet ##

iptables -t nat -A POSTROUTING -s 192.168.2.1 -o eth1 -j SNAT --to-source 82.190.228.52

## make internet -> DMZ ##

iptables -t nat -A PREROUTING -i eth1 -d x.x.x.52 -j DNAT --to-destination 192.168.2.1

Thanks
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#1 lore raw
Quoted 18 lines · On Fri, 2004-09-17 at 05:37, [email protected] wrote:

#!/bin/bash

iptables -F

iptables -t nat -F

iptables -t mangle -F

# filter table everythingd is ACCEPT  only to follow the 
easyest way#

iptables -P INPUT ACCEPT
iptables -P FORWARD ACCEPT
iptables -P OUTPUT ACCEPT

## make DMZ -> internet ##

Quoted 8 lines

iptables -t nat -A POSTROUTING -s 192.168.2.1 -o eth1 -j SNAT --to-source 82.190.228.52

## make internet -> DMZ ##

iptables -t nat -A PREROUTING -i eth1 -d x.x.x.52 -j DNAT --to-destination 192.168.2.1

sysctl -w net.ipv4.ip_forward=1

-j

Signature · 1 line
Jason Opperisano <[email protected]>