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09-02-2004, 11:00 PM
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#1
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LQ Newbie
Registered: Jun 2004
Posts: 3
Rep:
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IPTABLES port forward
Hi,
I am new to iptables. I need to forward all the https port 443 to port
7502. How should I do this in iptables? Is there anyway I can edit the configuration file so that after next reboot the policy is there. I am using redhat linux AS 3.0.
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09-03-2004, 02:28 AM
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#2
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Senior Member
Registered: Mar 2003
Location: Beautiful BC
Distribution: RedHat & clones, Slackware, SuSE, OpenBSD
Posts: 1,791
Rep:
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Is this for your local traffic?
iptables -t nat -A PREROUTING -i <internal NIC> -p tcp --dport 443 -j REDIRECT --to-port 7502
if it is external traffic going to another system
iptables -t nat -A PREROUTING -i <external nic> -p tcp --dport 443 -j DNAT --to-destination <ipaddress>:5702
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09-03-2004, 09:04 AM
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#3
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Member
Registered: Feb 2004
Location: Mooresville NC
Distribution: CentOS 4,Free BSD,
Posts: 358
Rep:
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That will work or you could try http://www.iptables-script.dk/
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09-28-2004, 08:07 PM
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#4
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LQ Guru
Registered: Jul 2003
Location: Los Angeles
Distribution: Ubuntu
Posts: 9,870
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Quote:
Originally posted by ppuru
if it is external traffic going to another system
Code:
iptables -t nat -A PREROUTING -i <external nic> -p tcp --dport 443 \
-j DNAT --to-destination <ipaddress>:7502
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yup, but don't forget the accompanying FORWARD rule needed to make that work:
Code:
iptables -A FORWARD -p tcp -d <ipaddress> --dport 7502 -j ACCEPT
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