On Wed, 2013-06-05 at 23:13 +0100, Jonathan Buzzard wrote: > > As far as I can tell sssd does not provide a mechanism for the smbd on > at least 3.5 (the 4.x series might be different but the OP is running > 3.6) to see an incoming SID and work out the UID. It would be pretty useless without. It does the same job as nss-ldapd and idmap_rid.