Greg Pascual wrote:
> I'm using ipchains on my Redhat 7.3 linux box. I just
> want to ask if how to port forward all incoming
> packets to ports 110 and 25. of my mail server
>
> Let's say my firewall which receives all incoming
> transactions has a local ip of 192.168.1.5 and my mail
> server has 192.168.1.9.
One way to do it is using the portfw kernel module for ipmasqadm.
So be sure to have it loaded first,
# modprobe ip_masq_portfw
or put something appropriate in /etc/modules.conf or put this in your
firewall script.
Now to port-forward mails received in your gateway/firewall to
your internal mail server, you may add this line to your firewall
rules
/usr/sbin/ipmasqadm portfw -a -P tcp -L 192.168.1.5 25 -R 192.168.1.9 25
For more help,
# man ipmasqadm
or
# ipmasqadm portfw -h
Your question is a good memory jogger.
--
Benj "There is no spoon." -- a child in The Matrix
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