Hi, I hope I've reported all you need to understand my situation: Samba-3.0.14a on RH9 joined to Windows Server 2003 and configured with Kerberos. Following my smb.conf. [global] netbios name = MILLX03 os level = 16 wins server = xxx.xxx.xxx.xxx (AD Server) socket options = IPTOS_LOWDELAY TCP_NODELAY SO_KEEPALIVE workgroup = DOMAIN realm = REALM.COM security = ADS encrypt passwords = yes allow trusted domains = Yes winbind use default domain = Yes winbind separator = / winbind enum users = Yes winbind enum groups = Yes idmap uid = 10000-100000 idmap gid = 10000-100000 hide unreadable = Yes template shell = /bin/false use sendfile = Yes printer admin = xxx admin users = xxx log file = /var/log/samba/log.%m log level = 2 auth:10 sam:10 max log size = 50 printcap name = cups disable spoolss = No show add printer wizard = Yes printing = cups load printers = yes nt acl support = Yes map acl inherit = Yes client use spnego = Yes [data] comment = DATA repository path = /data read only = No create mask = 0775 security mask = 0777 force security mode = 0 directory mask = 0775 directory security mask = 0777 force directory security mode = 0 dos filetimes = yes Following my data structure: /data /user /dtomasoni /another user ... Data share is mounted on XFS filesystem so I use ACL: /data # file: data # owner: root # group: root user::rwx group::r-x group:domain\040users:r-x mask::rwx other::r-x default:user::rwx default:group::--- default:group:domain\040users:r-x default:mask::rwx default:other::r-x /user # file: user # owner: root # group: root user::rwx group::--- group:domain\040users:r-x mask::rwx other::r-x default:user::rwx default:group::--- default:group:domain\040users:r-x default:mask::rwx default:other::r-x /dtomasoni # file: dtomasoni # owner: root # group: root user::rwx user:dtomasoni:rwx group::r-x mask::rwx other::--- default:user::rwx default:user:dtomasoni:rwx default:group::--- default:mask::rwx default:other::--- My target is to allow read/write permission on user's shares but nobody else can see others share than own. Target reached succesfully with "smbclient //millx03/data -Udtomasoni%dtomaso", but not with "smbclient -k //millx03/data -Udtomasoni%dtomaso", I have also reported below this behavior that unfortunatly is the same when I connect to the share by my W2k and XP client. [root@millx03 data]# smbclient -k //millx03/data -Udtomasoni%dtomaso added interface ip=xxx.xxx.xxx.xxx bcast=xxx.xxx.xxx.xxx nmask=xxx.xxx.xxx.xxx Doing kerberos session setup OS=[Unix] Server=[Samba 3.0.14a] smb: \> dir . D 0 Mon May 16 11:17:43 2005 .. D 0 Fri May 20 15:39:24 2005 user D 0 Fri May 20 18:21:48 2005 50906 blocks of size 16384. 50894 blocks available smb: \> cd user smb: \user\> dir . D 0 Fri May 20 18:21:48 2005 .. D 0 Mon May 16 11:17:43 2005 50906 blocks of size 16384. 50894 blocks available smb: \user\> ... [root@millx03 data]# smbclient //millx03/data -Udtomasoni%dtomaso added interface ip=xxx.xxx.xxx.xxx bcast=xxx.xxx.xxx.xxx nmask=xxx.xxx.xxx.xxx Domain=[DOMAIN] OS=[Unix] Server=[Samba 3.0.14a] smb: \> dir . D 0 Mon May 16 11:17:43 2005 .. D 0 Fri May 20 15:39:24 2005 user D 0 Fri May 20 18:21:48 2005 50906 blocks of size 16384. 50894 blocks available smb: \> cd user smb: \user\> dir . D 0 Fri May 20 18:21:48 2005 .. D 0 Mon May 16 11:17:43 2005 dtomasoni D 0 Wed May 18 19:01:55 2005 50906 blocks of size 16384. 50894 blocks available smb: \user\> ... Whats the different by these two method of authentication on browsing folders? Thanks a lot. Marco.