Hello, When setting up a samba 4 server acting as Active Directory, it is possible to enable encryption with "smb encrypt = mandatory" entry in configuration file for global section. With this configuration, Windows machines (8 and 10) are able to communicate (with encryption) with AD server. But for linux stations, only smbclient works (using smbclient -e -m SMB3 \\\\<DNS AD>\\<SHARE>). With cifs-utils (v. ), I get a "mount error(3): Permission denied" on command line, and a "STATUS_ACCESS_DENIED" on logs. I use following command : mount -t cifs //<DNS AD>//<SHARE> /mnt -o user=<USER>,workgroup=<WORKGROUP>,ip=<IP>,vers=3.0 As manpage (man 8 mount.cifs) contains this note for "vers" option: "Note too that while this option governs the protocol version used, not all features of each version are available." and sec option seems to only protect password when authenticating Do you have any information on when encryption feature could be implemented ? Thanks Benoît Jager -- To unsubscribe from this list: send the line "unsubscribe linux-cifs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html