From Fedora Project Wiki
Squid Config
http_port 80 vport defaultsite=download.fedora.redhat.com http_port 3128 cache_peer download.fedora.redhat.com parent 80 3130 no-query originserver cache_peer_domain download.fedora.redhat.com download.fedora.redhat.com hierarchy_stoplist cgi-bin ? acl QUERY urlpath_regex cgi-bin \? cache deny QUERY acl apache rep_header Server ^Apache broken_vary_encoding allow apache maximum_object_size 409600 KB cache_replacement_policy heap LFUDA cache_dir aufs /var/spool/squid 4096 32 256 access_log /var/log/squid/access.log squid refresh_pattern .*/repodata/.*\.xml.* 0 1% 60 refresh_pattern ^ftp: 1440 20% 10080 refresh_pattern ^gopher: 1440 0% 1440 refresh_pattern . 0 20% 4320 acl all src 0.0.0.0/0.0.0.0 acl manager proto cache_object acl localhost src 127.0.0.1/255.255.255.255 acl to_localhost dst 127.0.0.0/8 acl SSL_ports port 443 acl Safe_ports port 80 # http acl Safe_ports port 21 # ftp acl Safe_ports port 443 # https acl Safe_ports port 70 # gopher acl Safe_ports port 210 # wais acl Safe_ports port 1025-65535 # unregistered ports acl Safe_ports port 280 # http-mgmt acl Safe_ports port 488 # gss-http acl Safe_ports port 591 # filemaker acl Safe_ports port 777 # multiling http acl CONNECT method CONNECT acl our_networks src 10.0.0.0/24 http_access allow manager localhost http_access deny manager http_access deny !Safe_ports http_access deny CONNECT !SSL_ports http_access allow our_networks http_access allow localhost http_access deny all http_reply_access allow all icp_access allow all coredump_dir /var/spool/squid