On Fri, 12 Jul 2002 09:59:04 +0000, SB CH wrote:
>Hello,
>
>I would like to forward ftp request to other server's other port to improve
>the security. Is it possible?

--snipped--

use ipchains or iptables and use "portfw"
i do the very same thing on my redhat NAT server, below is my=3D
 ruleset as an example

/usr/sbin/ipmasqadm portfw -a -P tcp -L $IPADDR 21 \
 -R any_ip_here 21
/usr/sbin/ipmasqadm portfw -a -P tcp -L $IPADDR 20 \
 -R any_ip_here 20

$IPADDR is the IP that the request is going to
the second line is sending that request off to whatever up you=3D
 want, with port

i believe you enable portfw'ing with:
/usr/sbin/ipmasqadm portfw -f
but it has been awhile since i set this all up

~Red Knight



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