Hi, I have squid configured and running with NTLM authenticators. It's works fine but I want to give one more step. The NTLM config needs the following line: "acl password proxy_auth REQUIRED" This allow me to authenticate transparently throught the proxy but if an user want to surf and it's not registered on Active Directory, the proxy ask him for an user and a password, is there anyway force proxy to don't show this dialog? Thanks in advance. -- Angel Mieres - amieres@xxxxxxxxxxxxxxxxxx Administrador de Sistemas ENEO Tecnologia SL Pol. PISA C/ Manufactura 6, P1, 3B Mairena del Aljarafe 41927 - Sevilla Telf.- (+34) 955 60 11 60