Now I'm a little bit happy. i've installed a new fresh virtual box machine with ubuntu 12.10. Next step i 've installed squid (sudo apt-get install squid3) ; i modified squid.conf with ldap authentication (squid_ldap_auth e squid_ldap_group are in folder /usr/local/squid3 then i've created ,always in squid.conf ,the right acl associated with every ldap authentication..... and finally all seems to work in the right way !! i can gain access to internet even to AD Users or to AD Group user. and now i must do some experience with ubuntu ...sigh !! Thanks Amos !! -- View this message in context: http://squid-web-proxy-cache.1019090.n4.nabble.com/Issue-with-Squid-ldap-group-Windows-tp4663221p4663429.html Sent from the Squid - Users mailing list archive at Nabble.com.