Clever Redirect

[Stewart Robinson]

Hi,

You would probably have each backend defined

backend a_particular_backend {
  .host = "74.200.73.185";
  .port = "81";
}
 
backend a_spectacular_backend {
  .host = "74.200.73.186";
  .port = "81";
}

Then you could probably do something in the vcl_recv function

for instance

sub vcl_recv {
 if ( req.url == "a_particular_backend") {
	set req.backend = a_particular_backend;
        set req.url = "/somepage.xml";
  } else if (req.url == "a_spectacular_backend") {
	set req.backend = a_spectacular_backend;
        set req.url = "/somepage.xml";
}

e.t.c.

Will this work?

Stew

On 26 Jul 2010, at 07:40, Stephen Nelson-Smith wrote:

> Hello,
> 
> I might be trying to do this entirely the wrong way, but here's the plan:
> 
> I have a large number of machines on a private VLAN, behind a
> firewall, and without publicly routeable IP addresses.  I want to be
> able to hit a page (the same page) on each of them, from a known,
> remote location.  I don't wish to set up 90 different IPs on the
> external firewall.  What I thought I could do was something like this:
> 
> * Have varnish listening on a machine with an external IP address.
> * Hit http://varnish-server.com/$servername
> * Have varnish go to http://$servername/mypage.xml and return it to
> the initial requestor
> 
> I have this working with a nasty cgi script, but it seems to me as if
> this could be done via Varnish.  Am I right?  If so, how would I go
> about it?
> 
> Thanks,
> 
> S.
> 
> -- 
> Stephen Nelson-Smith
> Technical Director
> Atalanta Systems Ltd
> www.atalanta-systems.com
> 
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