How can the risk of UID/GID inconsistencies be avoided across UNIX/Linux systems that are sharing information over protocols other than SMB/CIFS (eg: NFS)?

A.
Specify a common LDAP idmap backend in smb.conf.

B.
Specify a common Kerberos realm in smb.conf.

C.
Specify a common domain name in smb.conf.

D.
Specify a common password server in smb.conf.

E.
Specify a common winbind id range in smb.conf.