Hi Hendrik, Thanks for the reply. The reason I don't think it's a permissions problem is the fact that this works perfectly in our lab and at every other place where we use ntlmv2 to do authentication, and only at one of our clients does it give this error. The winbindd_privileged directory is owned by root with nobody as the group. Squid runs as nobody:nobody. Do you still think it could be permissions? Cheers Ian -----Original Message----- From: Henrik Nordstrom [mailto:hno@xxxxxxxxxxxxxxx] Sent: 01 November 2005 02:55 AM To: Ian Barnes Cc: squid-users@xxxxxxxxxxxxxxx Subject: Re: Problem With NTLM On Mon, 31 Oct 2005, Ian Barnes wrote: > The problem comes in when I try and auth via a browser, I get the following > error in cache.log > > [2005/10/31 11:43:36, 0] utils/ntlm_auth.c:winbind_pw_check(427) > Login for user [Domain]\[Proxy2]@[ianb] failed due to [Access denied] Make sure the permissions on the winbind privileged pipe is set correctly allowing the group(s) Squid runs as access to the directory where the privileged pipe is.. Regards Henrik