I am having trouble using varnish as backend to another varnish server. The front-end varnish uses Disk based caching and backend uses malloc which load-balances multiple backend servers. When I hit the backend server with www.example.com it retrieves pages perfectly, when I hit the front-end server I am receiving error: Error 200 OK
OK
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Varnish cache server
. Is there any configuration changes to be made to use varnish caching server behind another one?