> If I > deactivate the option in web browser, the proxy give me a error because I > don't have persmission for access to cache, but not ask me for the > password > for authenticate What error exactly? Autentication cache error, because when disabled the integrated authentication in web browser, it don't send krb credential to squid and not ask for the user and password, only fail the autentication. A lot of thanks -- View this message in context: http://squid-web-proxy-cache.1019090.n4.nabble.com/Kerberos-squid-and-IE8-with-windows-integrated-validation-tp4660711p4660721.html Sent from the Squid - Users mailing list archive at Nabble.com.