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Thank you for all the responses ... turns out the solution was simplier ... I
tried the various solutions presented, and each of them did the same thing ...
The setup I have, I'm using csync2 to maintain the file systems on each
backend, and in order to simplify that, I'm using:
which works fine ... *but*, something gets confused when you mix-n-match the
above ... its either all of one or the other, but not both ... once I fixed my
config files, the pages now load consistently ...
Thank you all for the help on this, the pointers to the other software(s)
provided "proof" that it wasn't the software, but my configuration ...
- --On Saturday, January 31, 2009 13:55:08 +0000 Matthew Seaman
> Marc G. Fournier wrote:
>> Simple: is it possible?
>> I have two VMs that contain the same content, on two different IPs .. I
>> want to setup a third VM with something like haproxy on it that will
>> take the URL (http://domain1) and pull the content from one or the other
>> So far, all works well if I only have one virtual host, but as soon as I
>> add a second one (http://domain2), when I try to go to http://domain2,
>> it pulls up the content for domain1 also, as if I was going to http://IP
>> Is there a way to set this up (with haproxy, or some other software),
>> that it will actually pass the URL through to the backend apache server
>> and load up the right content? Or is this a limitation in the protocol
> This is certainly possible -- most of the world's big web sites work in
> exactly this way, although they would tend to use dedicated hardware LB
> if they were of any appreciable size.
> I think what's going wrong for you is that you are using a front-end proxy,
> and it's rewriting the requests with the host names of the real servers,
> which will certainly screw up name based virtual hosts.
> Instead of ha-proxy, look into relayd -- in conjunction with a pf(4)
> firewall this will do exactly what you want. It can operate purely at the
> IP level or even at layer 2 if you want to implement DSR. Another
> alternative to consider is varnish, although I'm not sure that has much
> in the way of health-checking the back-end servers behind it. varnish
> is a reverse-proxy / web accelerator so can give you some performance
> boost as well.
> Dr Matthew J Seaman MA, D.Phil. 7 Priory Courtyard
> Flat 3
> PGP: http://www.infracaninophile.co.uk/pgpkey Ramsgate
> Kent, CT11 9PW
Marc G. Fournier Hub.Org Hosting Solutions S.A. (http://www.hub.org)
Email . scra...@hub.org MSN . scra...@hub.org
Yahoo . yscrappy Skype: hub.org ICQ . 7615664
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