For Squid version 2.2.X and later
[you should use the newest stable version]
cache_peer proxy.ccu.edu.tw parent 3128 3130 round-robin no-query no-netdb-exchange cache_peer cache.ccu.edu.tw parent 3128 3130 round-robin no-query no-netdb-exchange cache_peer cache2.ccu.edu.tw parent 3128 3130 round-robin no-query no-netdb-exchange acl twip-map dst "/usr/local/squid/etc/twip.map" # please update this file often cache_peer_access proxy.ccu.edu.tw allow !twip-map all cache_peer_access cache.ccu.edu.tw allow !twip-map all cache_peer_access cache2.ccu.edu.tw allow !twip-map allyou might need to add the following to speed up fetching foreign urls : # hierarchy_stoplist cgi-bin ? always_direct allow twip-map never_direct deny twip-map never_direct allow all[ acls must be defined before using ]