Hi, As mentioned in help, By combining nonhierarchical_direct off and prefer_direct on you can set up Squid to use a parent as a backup path if going direct fails. I did the following configuration to use parent proxy , cache_peer_access proxy_parent.test.com allow all nonhierarchical_direct off prefer_direct on connect_timeout 5 seconds It works fine for http GET request. But doesn't work for https (CONNECT) request. https access will always try direct. Any idea about that? I tested on squid 2.6 stable and 3.0 stable, both of them doesn't work -- Leo Tao
