acl AllowedSites dstdomain "/home/john/squid3_sites/allowed-sites.squid"
acl RestrictedSites dstdomain "/home/john/squid3_sites/restricted-sites.squid"

http_access allow AllowedSites
http_access deny RestrictedSites

http_access allow AllowedSites
http_access deny RestrictedSites
http_access deny !Safe_ports
http_access deny CONNECT !SSL_ports
http_access deny all

acl SSL_ports port 443 563
acl AllowedSites dstdomain “/usr/local/etc/allowed-sites.squid”
acl RestrictedSites dstdomain “/usr/local/etc/restricted-sites.squid”
acl Safe_ports port 80          # http
acl Safe_ports port 21          # ftp
acl Safe_ports port 443 563     # https, snews
acl Safe_ports port 70          # gopher
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 all src all