acl url1 dstdomain -i 127.0.0.1
acl url2 dstdomain -i localhost
acl url3 dstdomain -i numero IP
acl payload dstdomain -i "/etc/squid3/payload.txt"
acl accept dstdomain -i "/etc/squid3/accept.txt"
acl block dstdomain -i "/etc/squid3/block.txt"
http_access allow url1
http_access allow url2
http_access allow url3
http_access allow payload
http_access allow accept
http_access deny block
http_access deny all
http_port 80
http_port 3128
http_port 8080
http_port 8799
visible_hostname nomedoserver
forwarded_for off
via off