Using LVS to forward HTTP from port 80 to servers runningonport 81

[Travis Melhiser]

Unfortunatly, there is already a web server running on port 80.

In this scenario, we have several applications running out of different web 
servers.

The web servers running on port 80 do just fine when configured to pass 
directly from the VIP to port 80 on the RIP servers.

The next set of web servers are configured to run on port 81.  We need a VIP 
that listens on port 80 and balances all the traffic to port 81 on the RIP 
servers with web servers listening on port 81.

Thanks,

-Travis

>From: "Deon van der Merwe" <deonvandermerwe at gmail.com>
>Reply-To: "LinuxVirtualServer.org users mailing list." 
><lvs-users at LinuxVirtualServer.org>
>To: "LinuxVirtualServer.org users mailing list." 
><lvs-users at linuxvirtualserver.org>
>Subject: Re: Using LVS to forward HTTP from port 80 to servers 
>runningonport 81
>Date: Thu, 13 Jul 2006 22:59:28 +0200
>
>Hi Travis,
>
>More or less something like this:
>/sbin/iptables -F
>/sbin/iptables -t nat -F
>/sbin/iptables -t nat -A PREROUTING -i eth0 -p tcp -s 0/0 --dport 80
>-j DNAT --to 192.168.100.11:81
>
>
>On 7/13/06, Travis Melhiser <tmelhiser at hotmail.com> wrote:
>>I am willing to give it a try.  I'll try to work it out here, but it would
>>be extremely helpful if you had  an example of the iptables command?
>>
>>
>> >From: "Deon van der Merwe" <deonvandermerwe at gmail.com>
>> >Reply-To: "LinuxVirtualServer.org users mailing list."
>> ><lvs-users at LinuxVirtualServer.org>
>> >To: "LinuxVirtualServer.org users mailing list."
>> ><lvs-users at linuxvirtualserver.org>
>> >Subject: Re: Using LVS to forward HTTP from port 80 to servers running
>> >onport 81
>> >Date: Thu, 13 Jul 2006 22:47:02 +0200
>> >
>> >Hi Travis,
>> >
>> >On 7/13/06, Travis Melhiser <tmelhiser at hotmail.com> wrote:
>> >>I'm pretty new to LVS and can't seem to find the right configuration or
>> >>the
>> >>right documentation to get my environment set up.
>> >>
>> >>I would like to have requests come to the LVS server on port 80 an then
>> >>have
>> >>the LVS server forward these requests to the machines in the cluster
>> >>running
>> >>the web servers on port 81.
>> >>
>> >>Does anyone have an example of how to set this up?
>> >>
>> >
>> >I do no know if/how to do this with LVS, but I would solve it by
>> >running a simply iptables PREROUTING DNAT rule on each of the real
>> >servers...
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