Could you write me an example how to write correct acl's which allowing only a few sites (from file) and block all www sites ? Only selected pages and nothing else should be available . Why when I # default acl eg. "http_access allow all" my squid after reload reports error ? acl allowedsites dstdomain -i "/etc/squid/dozwolone.txt" acl allowedcomputers src 192.168.0.3 192.168.0.6 192.168.0.17 192.168.0.12 192.168.0.15 192.168.0.16 acl mail dstdom_regex .*poczta.* .*mail.* http_access allow allowedsites allowedcomputers !mail #http_access allow all http_access allow localnet http_access allow manager localhost http_access deny manager http_access deny !Safe_ports http_access deny CONNECT !SSL_ports http_access allow localhost #http_access deny all http_access deny localnet #icp_access allow all icp_access allow localnet