unix password sync

This boolean parameter controls whether Samba
attempts to synchronize the UNIX password with the SMB password
when the encrypted SMB password in the smbpasswd file is changed.
If this is set to yes the program specified in the passwd
program parameter is called AS ROOT -
to allow the new UNIX password to be set without access to the
old UNIX password (as the SMB password change code has no
access to the old password cleartext, only the new).

This option has no effect if samba
is running as an active directory domain controller, in that case have a
look at the option and the
samba-tool user syncpasswords command.

unix password sync

Registry Hive	HKEY_LOCAL_MACHINE
Registry Path	Software\Policies\Samba\smb_conf\unix password sync
Value Name	unix password sync
Value Type	REG_DWORD
Default Value	0
True Value	1
False Value	0