Hi, I have created a filter file named block.lst with the following contents /youtube. /orkut. /songs.pk /senduit. I have created an acl based on the domain regex for the above filter by specifying the following rule in the squid.conf acl list_blocked dstdom_regex "/squid/lists/block.lst" to block all users from accessing the domains specified in the above list, i have specified the following rule in squid.conf http_access deny all list_blocked As a result of the above changes, access to http://www.youtube.com, http://youtube.com, http://www.orkut.com and http://orkut.com is restricted, But however, http://www.songs.pk and http://songs.pk remains accessible and at the same time http://www.senduit.com remains accessible while http://senduit.com becomes restricted. I see similar issues with a couple of domains. I really have no clue why this is happening. I am using squid3-STABLE11 and have seen these issues in earlier versions as well. Please let me know if theres something wrong with what i am doing. Regards ~Sameer