[H-GEN] fowarding port 80

[David Thorndike]

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okay thanks guys
I am using a 2.2 kernal with ipchains, does this help at all, the other
thing is that I don't think that I am running squid at all do I really need
to?

Thanks

DAv e

----- Original Message -----
From: "David Jericho" <davidj at diskpig.org>
To: <general at lists.humbug.org.au>
Sent: Tuesday, March 19, 2002 11:44 AM
Subject: Re: [H-GEN] fowarding port 80


> [ Humbug *General* list - semi-serious discussions about Humbug and  ]
> [ Unix-related topics.  Please observe the list's charter.           ]
> [ Worthwhile understanding: http://www.humbug.org.au/netiquette.html ]
>
> On Tue, Mar 19, 2002 at 10:57:56AM +1000, David Thorndike wrote:
> > I have a debian router here and I want it to pass all port 80 requests
> > through to another box on my internal network, Is this possible and if
so,
> > can anyone help me or suggest any good docs to help me get it working.
>
> If you're using a 2.4 kernel with iptables, it's fairly simple.
>
> /sbin/ iptables -t nat -A PREROUTING -p tcp --dport 80 \
> -i <external interface> -j DNAT --to <internal webserver:internal webport>
>
> That means, basically says, Address Translate all tcp packets destined
> for port 80 on my external interface (regardless of ip) to be destined
> for my internal webserver on its port, before any route finding is done.
>
> PREROUTING chain (the -A PREROUTING bit) says to process this packet
> after processing the INPUT chain (first thing processed), but before the
> kernel makes up its mind as to where the packet is destined.
>
> There is plenty more info on both ipchains (the old way), and iptables
> (The New Way(tm)) at http://www.netfilter.org/
>
> --
> David Jericho
>
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