Re: Mail Server Behind IPTABLES

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On August 31, 2004 09:01 pm, Ajen Diwakar wrote:
> Hi All
>
> I am new to IPTABLES usage. I have linux(RH) 9.0.
> The external IP address eth1 is 202.62.x.x
> The internal ip address is 10.0.0.4
>
> My mail server IP address is 10.0.0.10
>
> How do I setup my iptables so that the mail to my record get transfred
> to the mail server.
>
> Any assistance will be appreciated.

	iptables -t nat -A PREROUTING -p TCP -i {internet device} -d 202.62.x.x  \ 
--dport 25 -j DNAT -to 10.0.0.10

	iptables -A FORWARD -p TCP -i {internet device} -d 10.0.0.10 --dport 25  \
-j ACCEPT

	(assuming FORWARD -P DROP )


	Alistair Tonner


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