As far as I remember on windows the username has to be "OPS$<Client Machine Name>\<Username>". To be sure, as Jack suggested, check v$session to get the exact form of your username. Stefan On Jan 31, 2008 2:18 AM, Khan, Muhammad S <Muhammad.Khan@xxxxxx> wrote: > Hi Gurus. > > > > > > Its hard to believe what I'm stuck at here right now! I'm testing the OS > authentication in my test environment with Oracle 9i database on Unix while > client running on Windows. I set the following parameters in the init file > for this: > > > > os_authent_prefix OPS$ > > remote_os_authent TRUE > > remote_login_passwordfile NONE > > > > I created the user "OPS$<domainname>\<username>" and granted the necessary > privileges required. This username is the same as my windows client user. > Now when I'm trying to connect from the client through sqlplus, it prompts > me for password and doesn't accept null password. > > > > I made different changes in the values for os_authent_prefix and set to "" > or remote_os_authent to false but no good. > > > > What am I missing here? Is there any catch? Please help as I need to > present the output very soon. > > > > Thanks, > > Khan. > > > -- ========================= Stefan P Knecht Senior Consultant Infrastructure Managed Services Trivadis AG Europa-Strasse 5 CH-8152 Glattbrugg Phone +41-44-808 70 20 Fax +41-808 70 12 Mobile +41-79-571 36 27 stefan.knecht@xxxxxxxxxxxx http://www.trivadis.com OCP 9i/10g SCSA SCNA =========================