Dear I would like to connect my squid 3.2 to the Active Directory 2003 All Kerberos settings should working # /usr/bin/kinit Administrateur@xxxxxxxxxxxxxxxxxx -V 2>&1 Password for Administrateur@xxxxxxxxxxxxxxxxxx: Authenticated to Kerberos v5 # klist Ticket cache: FILE:/tmp/krb5cc_0 Default principal: Administrateur@xxxxxxxxxxxxxxxxxx Valid starting Expires Service principal 12/13/11 17:10:26 12/14/11 03:10:24 krbtgt/MAISON.TOUZEAU.BIZ@xxxxxxxxxxxxxxxxxx renew until 12/14/11 17:10:26 Squid.conf auth_param negotiate program /lib/squid3/negotiate_kerberos_auth -d -s HTTP/squid32-64.touzeau.com auth_param negotiate children 10 auth_param negotiate keep_alive on auth_param basic realm Squid proxy-caching web server auth_param basic credentialsttl 2 hour authenticate_ip_ttl 60 seconds authenticate_cache_garbage_interval 10 seconds authenticate_ttl 0 hour #--------- kerberos ACL settings acl AUTHENTICATED proxy_auth REQUIRED In events squid claim 011/12/13 17:11:27 kid1| ERROR: Negotiate Authentication validating user. Error returned 'BH received type 1 NTLM token' negotiate_kerberos_auth.cc(316): pid=23130 :2011/12/13 17:11:28| negotiate_kerberos_auth: DEBUG: Got 'YR TlRMTVNTUAABAAAAB4IIogAAAAAAAAAAAAAAAAAAAAAFASgKAAAADw==' from squid (length: 59). negotiate_kerberos_auth.cc(379): pid=23130 :2011/12/13 17:11:28| negotiate_kerberos_auth: DEBUG: Decode 'TlRMTVNTUAABAAAAB4IIogAAAAAAAAAAAAAAAAAAAAAFASgKAAAADw==' (decoded length: 40). negotiate_kerberos_auth.cc(389): pid=23130 :2011/12/13 17:11:28| negotiate_kerberos_auth: WARNING: received type 1 NTLM token 2011/12/13 17:11:28 kid2| ERROR: Negotiate Authentication validating user. Error returned 'BH received type 1 NTLM token' Where 'i am wrong ?