-----Original Message----- From: keisuke.hamanaka@xxxxxxxxxxxxx [mailto:keisuke.hamanaka@xxxxxxxxxxxxx] Sent: 04 November 2008 06:20 To: squid-users@xxxxxxxxxxxxxxx Subject: NTLM Auth and transparently access Sorry,my English is so poor. I 'd like to configure Squid working with NTLM AUTH. Can the clinet which has already logged in Windows' domain access to the Internet transparently? Or Is the client be asked Usename and Password again? =-------------------------------------= You can run a transparent proxy and authenticate users, it's just not how it works. NTLM is a single-sign-on mechanism if the users are using Windows machines joined to the same domain squid is joined top, in that sense it is transparent as they are being authenticated without being prompted. They only time they will need to authenticate is on non-domain machines, I.e. Guest laptops, outside visitors etc that use the server. So in essence to your reply; if the user is on a Windows domain with Squid running NTLM, they won't get prompted to login HTH, Alex