Finally resolved that issue by applying the latest fedora core 9 updates and resetting a few things - unfortunately, not sure exactly what fixed the problem. A query on squid.conf... If the http_access settings allow a connection through without ntlm authentication, it seems as though the authentication is not used. Reasonable I assume but in trying to get this working, we tried to set up reverse proxy to a different site - successfully. Then we added the ntlm bits for access to the secure area. What became apparent is although the login was requested on the browser, nothing actually got through to winbind! Anyway, we still have a problem... Having removed all http_access accept the ntlm users bit, authorisation process goes through OK, however, the security token is not getting through to sharepoint. Squid debug shows the GET followed by a reply with "Unauthorised" from the sharepoint server. What else am I missing? -- View this message in context: http://www.nabble.com/Reverse-proxy-to-Sharepoint-tp17909397p18385593.html Sent from the Squid - Users mailing list archive at Nabble.com.