hi all. i am using squid proxy 2.6. i have both auth acl and ip src acl to authenticate my internal users. but some users are using proxy servers on internal machines. how to block requests coming from internal proxy servers. apee stevie ap1123@xxxxxxxxxxx ____________________________________________________________________________________ Building a website is a piece of cake. Yahoo! Small Business gives you all the tools to get online. http://smallbusiness.yahoo.com/webhosting