Forgot to say, that I am using the latest CVS version of squid. And here is my squid configuration: http_port 80 vhost icp_port 3130 cache_dir aufs /var/cache/squid 100 16 256 access_log /var/log/squid/access.log cache_log /var/log/squid/cache.log cache_store_log none pid_filename /var/run/squid.pid debug_options 17,7 redirect_program /usr/local/sbin/redirect.pl redirect_rewrites_host_header off 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 443 563 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 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 Safe_ports port 8080 # zope acl CONNECT method CONNECT http_access allow manager localhost http_access deny manager http_access deny !Safe_ports http_access deny CONNECT !SSL_ports http_access allow all http_access deny all http_reply_access allow all icp_access allow all httpd_accel_surrogate_id office esi_parser libxml2 strip_query_terms off coredump_dir /var/cache/squid ie_refresh on minimum_expiry_time 0 seconds