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List:       haproxy
Subject:    Re: Load balancing to name-based virtual hosts
From:       Jeff Buchbinder <jbuchbinder () ravewireless ! com>
Date:       2008-12-11 19:06:21
Message-ID: 494164AD.8030606 () ravewireless ! com
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David Rorex wrote:
> The simplest method would be to set up each server to respond to the 
> same domain name. eg location1, location2, etc would all have the domain 
> 'soap.vendor.com <http://soap.vendor.com>' set up. Then, a user requests 
> soap.vendor.com <http://soap.vendor.com> from the haproxy load balancer, 
> it gets randomly passed to one of the backends, which has no problem 
> because it is set up to handle that name

Thanks. I already ended up implementing something like that, but had 
been looking for a way to do it on a per server basis (in the case that 
the vendor did not assign a common virtual host name to all servers). I 
just used this request rewrite line to do the mangling, in case anyone 
else needs it:

   reqrep	^(Host:\ )(.*) \1www.vendor.com

which would send the virtual host name "www.vendor.com" with the HTTP 
request.

------------------
Jeffrey Buchbinder
Senior Infrastructure Engineer
Rave Wireless, Inc
M: 860 617 5750
jbuchbinder@ravewireless.com
ravewireless.com

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