Dear Sir/Madam, I've tried to activate LDAP authentication for Squid. Users have to authenticate, but it doesn't matter if they are in one of the two groups you have to be a member of. Then when a user with restrictions opens a link like schoolbank.nl for instance they get a login screen that doesn't disappear anymore. A user without restrictions can open the link without any problem. Can you give me a clue? Regards Jeroen Ruijter Active Directory Windows 2003 Domain.local - Proxy - InternetAccessGroup - InternetAccessGroupRestricted ---------------------------------------------------------------- Squid.conf (version 3.0 installed on SuSE 11.2) auth_param basic program /usr/sbin/squid_ldap_auth -v 3 -R -b "dc=domain,dc=local" -D "cn=ldapuser,cn=users,dc=domain,dc=local" -w "xxxxx" -f sAMAccountName=%s -h x.x.x.x auth_param basic children 5 auth_param basic realm Squid proxy-caching web server auth_param basic credentialsttl 2 hour external_acl_type InetGroup %LOGIN /usr/sbin/squid_ldap_group -v 3 -R -b "dc=domain,dc=local" -D "cn=ldapuser,cn=users,dc=domain,dc=local" -w "xxxxx" -f "(&(objectclass=person) (sAMAccountName=%v) (memberof=cn=%a,ou=proxy,dc=domain,dc=local))" -h x.x.x.x acl users proxy_auth REQUIRED acl InetAccess external InetGroup InternetAccessGroup acl InetAccessRestricted external InetGroup InternetAccessGroupRestricted acl schoolbank.nl url_regex schoolbank.nl acl users proxy_auth REQUIRED http_access deny schoolbank.nl !InetAccess http_access allow localnet users