Ok, Thanks. We are using a windows server 2012... Can you explain to me how the negotiate authenticator works?? how works? when a user want browser to a page, the squid, use the authenticator for know if can browse?? every time? for every single web pages? Thanks -- View this message in context: http://squid-web-proxy-cache.1019090.n4.nabble.com/Documentation-for-squidclient-tp4682457p4682512.html Sent from the Squid - Users mailing list archive at Nabble.com. _______________________________________________ squid-users mailing list squid-users@xxxxxxxxxxxxxxxxxxxxx http://lists.squid-cache.org/listinfo/squid-users