Hi All, I was wrong when said that my authentication was working in last email... I´m trying work Squid with MS AD So this is my squid.conf entry about LDAP auth: auth_param basic program /usr/local/squid/libexec/squid_ldap_auth -R -b "CN=user_admin,OU=ABC,DC=abc,DC=com,DC=br" -D "CN=user_admin,OU=ABC,DC=abc,DC=com,DC=br" -w "/usr/local/squid/etc/file" -f "(objectclass=*)" -h ldap_server_ip:port Using this configuration with Ldapbrowser tool (Softerra), I can search my entire LDAP tree without problems. my search base is: CN=user_admin,OU=Usuarios,OU=ABC,DC=abc,DC=com,DC=br "user_admin" is Domain Admin of AD ( maybe necessary to bind on it ???) But Squid just give me an old TCP_DENIED entry on log files: 1213403347.792 15 192.168.10.1 TCP_DENIED/407 2706 GET http://www.gm.com/ user_admin NONE/- text/html 1213405393.479 15 192.168.10.1 TCP_DENIED/407 2706 GET http://www.squid-cache.org/ user_admin NONE/- text/html Anyone can help me ? Thanks in advance Alexandre Abra sua conta no Yahoo! Mail, o único sem limite de espaço para armazenamento! http://br.mail.yahoo.com/