Here is my squid.conf http_port 10.0.0.1:8080 acl clients src "/etc/allowedclients" acl packb src "/home/admin/packb" acl bext url_regex -i http .exe .mp3 http_access allow clients visible_hostname firewall.hotmail.con cache_mgr admin@xxxxxxxxxxx httpd_accel_host virtual httpd_accel_port 80 httpd_accel_with_proxy on httpd_accel_uses_host_header on i want to block certain Ip's "/home/admin/packb" in a file to download certain contents "acl bext url_regex -i http .exe .mp3" of what i found out in documentation i have to create a acl for the clients which i did in the syntax above, then another ACL for the blocked extension, & lastly create a rule , now this i am going unsuccessfully in , can you help me out here ? how to create a rule that block these extensions to the clients in packb ? thanks *º¤., ¸¸,.¤º*¨¨¨*¤ Stingray *º¤., ¸¸,.¤º*¨¨*¤ __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com