[Samba] One User, One Ldap, Multiple Domains

[David Barker]

Looking through the ldapsam stuff, it looks like in samba 3 a user can 
only be a member of one domain at a time in an ldap tree.

attributetype ( 1.3.6.1.4.1.7165.2.1.20 NAME 'sambaSID'
        DESC 'Security ID'
        EQUALITY caseIgnoreIA5Match
        SYNTAX 1.3.6.1.4.1.1466.115.121.1.26{64} SINGLE-VALUE )

Does anyone know if it's safe to drop SINGLE-VALUE from sambaSid, to 
allow one user to be in two domains at once?