From owner-freebsd-net  Mon Dec 10 21:20:23 2001
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Date: Mon, 10 Dec 2001 21:13:03 -0800 (PST)
From: Julian Elischer <julian@elischer.org>
To: Tom Peck <tom@masaclaw.co.nz>
Cc: freebsd-net@FreeBSD.ORG
Subject: Re: 1 IP - 1 Firewall - 2 Webservers
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I have a solution for exactlythis problem
You need the patch I submitted for ipfw fwd of incoming packets
about 3 weeks ago.

it allows load sharing to an arbitrary number of webservers transparently
I sent it to "net" and it had a subject of RFC: (something)

the mail includes how to set it up..
it uses about 1% of cpu redirecting a 10Mb ethernet to 2 servers.
(sorry to be vague but look it up in the archives with 
julian AND RFC AND ipfw    in the net list..


On Tue, 11 Dec 2001, Tom Peck wrote:

> Hello
> 
> We have ONE static IP with our ISP via a Cable Modem.  Connected at our end 
> of the Cable Modem is a FreeBSD Firewall / Internet Gateway for the rest of 
> the internal Lan.
> 
> On the Internal Network we have 2 Web / Mail servers which collect mail and 
> serve HTTP requests recieved from the gateway box.
> 
> INTERNET ---> GATEWAY_BOX  ---> WEBSERVER_1 (www.domain1.com, bla@domain1.com)
>                             ---> WEBSERVER_2 (www.domain2.com, bla@domain2.com)
>                             ---> WORKSTATIONS
> 
> 
> We are currently using squid to forward on the HTTP requests to the web 
> servers decided by domain requested, ie if someone goes to 
> www.domain1.com/index.htm this request will be forwarded by Squid to the 
> WEBSERVER_1.
> 
> This has been working fine, until I decided to run some tests, and look 
> through the apache logs on the WEBSERVER_1.  ALL incoming Client IP's and 
> Addresses are always that of the GATEWAY_BOX.  This poses a problem for 
> websites which have security on them for OUTSIDE addresses, as this 
> security will no longer work..  Also, WebStats are going to be invalid as 
> all requests are made from the Gateway IP.
> 
> Does anybody have any solutions for this problem?  Other software solutions 
> which will fun on FreeBSD?  Any help would be most appreciated - even just 
> a "I wouldn't have a clue, e-mail this group" or something.
> 
> Thanks All
> 
> Tom Peck
> 
> 
> 
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