I'm building a box to act as a firewall. I intend to set up a webserver
on a second box behind that firewall, so I need to forward packets from
the exterior connection to the inside.
Docs say you can do this with ipchains. I've done this using and earlier
kernel and snat, but I can't find any docs that cover it for ipchains...
frustrating. The ipchains howto doesn't give it. I've got the kernel
configured, but all the docs talk about masquerading and fall short of a
simple explanation of how to translate the packets on the exterior
interface to the ip address/port on the inside interface.
Evidently, the actual setting up of packet forwarding must require another
tool.
Anyone know where this is documented? What tool is needed?
Maybe a simple example? I'm getting tired of trying to do this by
experiment.
Any help would be appreciated.
Thanks.
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