Hello, I am having some problems to build my own syntax with squid_ldap_group against AD because I have users in different OUs, like bellow: dc=example,dc=com | ou=department1,dc=example,dc=com | dn: cn=user 1,ou=department1,dc=example,dc=com objectClass=person samAccountName=user1 memberOf=cn=facebook,ou=groups,dc=example,dc=com memberOf=cn=youtube,ou=groups,dc=example,dc=com .... | ou=department2,dc=example,dc=com | dn: cn=user 2,ou=department2,dc=example,dc=com objectClass=person samAccountName=user2 memberOf=cn=facebook,ou=groups,dc=example,dc=com memberOf=cn=youtube,ou=groups,dc=example,dc=com memberOf=cn=linkedin,ou=groups,dc=example,dc=com .... | ou=department3,dc=example,dc=com | dn: cn=user 3,ou=department3,dc=example,dc=com objectClass=person samAccountName=user3 memberOf=cn=allowed,ou=groups,dc=example,dc=com memberOf=cn=denied,ou=groups,dc=example,dc=com .... This is my squid_ldap_group syntax: squid_ldap_group -b "dc=example,dc=com" -D "cn=proxy,cn=adminusers,dc=example,dc=com" -w 'test' -f "(&(objectClass=person)(sAMAccountName=%u)(memberOf=cn=%g,ou=groups,dc=example,dc=com))" -h "192.168.4.3" -K And the testes: user1 facebook ERR user2 linkedin ERR user3 allowed ERR PS: I am using kerberos authentication and it works fine and I don´t know why I am having the error above. Thanks, Marcio Garcia