On Tuesday 24 July 2007 12:56, Tek Bahadur Limbu wrote: > Is this possible? In other words, I want my proxy servers to detect > squid or other proxy severs which are being used or operated by others > besides me. May it is bepossible: - if you know your network you can use header x_forwarded_for to detect unknown networks. - if you wont to allow only your proxy servers use http_access directive with acl which contains only your proxy's - try something like this: acl myproxy req_header Via MyProxy http_access allow myproxy http_access deny all - use authentication