I need to access several Windows domain shares from my linux box. I can access both shares from a Win box where I use my domain login. I placed my domain credentials in /home/przemek/.smb_credentials and I can successfully mount one of the shares: mount.cifs '//elwood.nist.gov/61_NCNR/610' /mnt/ --verbose -o uid=przemek,credentials=/home/przemek/.smb_credentials parsing options: uid=przemek,credentials=/home/przemek/.smb_credentials Domain NIST mount.cifs kernel mount options unc=//elwood.nist.gov\61_NCNR,user=przemek,domain=NIST,pass=mypass,ver=1,credentials=/home/przemek/.smb_credentials,uid=500,prefixpath=610 df //elwood.nist.gov/61_NCNR/610 21893480448 14847986400 7045494048 68% /mnt umount /mnt but not the other one: mount.cifs '//ociosfs.nist.gov/plan$/NCNR' /mnt/ --verbose -o uid=przemek,credentials=/home/przemek/.smb_credentials parsing options: uid=przemek,credentials=/home/przemek/.smb_credentials Domain NIST mount.cifs kernel mount options unc=//ociosfs.nist.gov\plan$,user=przemek,domain=NIST,pass=mypass,ver=1,credentials=/home/przemek/.smb_credentials,uid=500,prefixpath=NCNR mount error(13): Permission denied How could I check what is going on? Is there more info to collect on the Linux end on why it's denied? Are there questions to ask the Windows domain/server admins? The two shares are on different servers, and the failing one is a hidden share (plan$), but as I said, they are both simply visible within Windows.