Varnish - set backend if statuscode is 404

[Tobias Honacker]

Hey guys,

i’ve got one problem and don’t know how to solve this problem.
I have to use another backend if the req.url matches AND HTTP Status is 404.

sub vcl_recv {
if (req.url ~ „^/path/to/images") {
 set req.backend = p1_backend;
 set req.http.host = "www.mysite.de“;
 }

How to solve the 404 Status?


varnishd -V
varnishd (varnish-3.0.2 revision 55e70a4)
Copyright (c) 2006 Verdens Gang AS
Copyright (c) 2006-2011 Varnish Software AS


Thanks for any information.


Best regards,
Tobias


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