I've squid configured as a Reverse Proxy with a default site (192.168.240.22:8080) I've an application that asks resources to squid, and squid ask them to the default site (Is not possible to configure a proxy in the app) Is it possible to define other site and if the default site is shutdown or the resource isn't there squid try with other? I tried to modify the squid.conf file adding others cache_peer and cache_peer_access without good results.
