Its this snippet you need to google. In my simple setup, I didn't use the
the unix password sync or passwd program stuff...

http://www.ubuntugeek.com/howto-setup-samba-server-with-tdbsam-backend.html
http://www.samba.org/samba/docs/using_samba/ch09.html

Did you try smbpasswd?


# You may wish to use password encryption.  See the section on
# 'encrypt passwords' in the smb.conf(5) manpage before enabling.
;    encrypt passwords = yes

# If you are using encrypted passwords, Samba will need to know what
# password database type you are using.
;    passdb backend = tdbsam

    obey pam restrictions = yes

# This boolean parameter controls whether Samba attempts to sync the Unix
# password with the SMB password when the encrypted SMB password in the
# passdb is changed.
    unix password sync = yes

# For Unix password sync to work on a Debian GNU/Linux system, the following
# parameters must be set (thanks to Ian Kahan <<
kahan@informatik.tu-muenchen.de> for
# sending the correct chat script for the passwd program in Debian Sarge).
    passwd program = /usr/bin/passwd %u
    passwd chat = *Enter\snew\s*\spassword:* %n\n
*Retype\snew\s*\spassword:* %n\n *password\supdated\ssuccessful
ly* .

# This boolean controls whether PAM will be used for password changes
# when requested by an SMB client instead of the program listed in
# 'passwd program'. The default is 'no'.
    pam password change = yes




On Tue, Aug 20, 2013 at 9:15 PM, Wayne Davis <waydavis@centurylink.net>wrote:

> #
> # Sample configuration file for the Samba suite for Debian GNU/Linux.
> #
> #
> # This is the main Samba configuration file. You should read the
> # smb.conf(5) manual page in order to understand the options listed
> # here. Samba has a huge number of configurable options most of which
> # are not shown in this example
> #
> # Some options that are often worth tuning have been included as
> # commented-out examples in this file.
> #  - When such options are commented with ";", the proposed setting
> #    differs from the default Samba behaviour
> #  - When commented with "#", the proposed setting is the default
> #    behaviour of Samba but the option is considered important
> #    enough to be mentioned here
> #
> # NOTE: Whenever you modify this file you should run the command
> # "testparm" to check that you have not made any basic syntactic
> # errors.
> # A well-established practice is to name the original file
> # "smb.conf.master" and create the "real" config file with
> # testparm -s smb.conf.master >smb.conf
> # This minimizes the size of the really used smb.conf file
> # which, according to the Samba Team, impacts performance
> # However, use this with caution if your smb.conf file contains nested
> # "include" statements. See Debian bug #483187 for a case
> # where using a master file is not a good idea.
> #
>
> #======================= Global Settings =======================
>
> [global]
>
> ## Browsing/Identification ###
>
> # Change this to the workgroup/NT-domain name your Samba server will part
> of
>     workgroup = workgroup
>
> # server string is the equivalent of the NT Description field
>     server string = %h server (Samba, Ubuntu)
>
> # Windows Internet Name Serving Support Section:
> # WINS Support - Tells the NMBD component of Samba to enable its WINS
> Server
> #   wins support = no
>
> # WINS Server - Tells the NMBD components of Samba to be a WINS Client
> # Note: Samba can be either a WINS Server, or a WINS Client, but NOT both
> ;   wins server = w.x.y.z
>
> # This will prevent nmbd to search for NetBIOS names through DNS.
>     dns proxy = no
>
> # What naming service and in what order should we use to resolve host names
> # to IP addresses
> ;   name resolve order = lmhosts host wins bcast
>
> #### Networking ####
>
> # The specific set of interfaces / networks to bind to
> # This can be either the interface name or an IP address/netmask;
> # interface names are normally preferred
> ;   interfaces = 127.0.0.0/8 eth0
>
> # Only bind to the named interfaces and/or networks; you must use the
> # 'interfaces' option above to use this.
> # It is recommended that you enable this feature if your Samba machine is
> # not protected by a firewall or is a firewall itself.  However, this
> # option cannot handle dynamic or non-broadcast interfaces correctly.
> ;   bind interfaces only = yes
>
>
>
> #### Debugging/Accounting ####
>
> # This tells Samba to use a separate log file for each machine
> # that connects
>     log file = /var/log/samba/log.%m
>
> # Cap the size of the individual log files (in KiB).
>     max log size = 1000
>
> # If you want Samba to only log through syslog then set the following
> # parameter to 'yes'.
> #   syslog only = no
>
> # We want Samba to log a minimum amount of information to syslog.
> Everything
> # should go to /var/log/samba/log.{smbd,nmbd} instead. If you want to log
> # through syslog you should set the following parameter to something
> higher.
>     syslog = 0
>
> # Do something sensible when Samba crashes: mail the admin a backtrace
>     panic action = /usr/share/samba/panic-action %d
>
>
> ####### Authentication #######
>
> # "security = user" is always a good idea. This will require a Unix account
> # in this server for every user accessing the server. See
> # /usr/share/doc/samba-doc/**htmldocs/Samba3-HOWTO/**ServerType.html
> # in the samba-doc package for details.
>     security = user
>
> # You may wish to use password encryption.  See the section on
> # 'encrypt passwords' in the smb.conf(5) manpage before enabling.
> ;    encrypt passwords = yes
>
> # If you are using encrypted passwords, Samba will need to know what
> # password database type you are using.
> ;    passdb backend = tdbsam
>
>     obey pam restrictions = yes
>
> # This boolean parameter controls whether Samba attempts to sync the Unix
> # password with the SMB password when the encrypted SMB password in the
> # passdb is changed.
>     unix password sync = yes
>
> # For Unix password sync to work on a Debian GNU/Linux system, the
> following
> # parameters must be set (thanks to Ian Kahan <<kahan@informatik.tu-**
> muenchen.de <kahan@informatik.tu-muenchen.de>> for
> # sending the correct chat script for the passwd program in Debian Sarge).
>     passwd program = /usr/bin/passwd %u
>     passwd chat = *Enter\snew\s*\spassword:* %n\n
> *Retype\snew\s*\spassword:* %n\n *password\supdated\**ssuccessfully* .
>
> # This boolean controls whether PAM will be used for password changes
> # when requested by an SMB client instead of the program listed in
> # 'passwd program'. The default is 'no'.
>     pam password change = yes
>
> # This option controls how unsuccessful authentication attempts are mapped
> # to anonymous connections
>     map to guest = bad user
>
> ########## Domains ###########
>
> # Is this machine able to authenticate users. Both PDC and BDC
> # must have this setting enabled. If you are the BDC you must
> # change the 'domain master' setting to no
> #
> ;   domain logons = yes
> #
> # The following setting only takes effect if 'domain logons' is set
> # It specifies the location of the user's profile directory
> # from the client point of view)
> # The following required a [profiles] share to be setup on the
> # samba server (see below)
> ;   logon path = \\%N\profiles\%U
> # Another common choice is storing the profile in the user's home directory
> # (this is Samba's default)
> #   logon path = \\%N\%U\profile
>
> # The following setting only takes effect if 'domain logons' is set
> # It specifies the location of a user's home directory (from the client
> # point of view)
> ;   logon drive = H:
> #   logon home = \\%N\%U
>
> # The following setting only takes effect if 'domain logons' is set
> # It specifies the script to run during logon. The script must be stored
> # in the [netlogon] share
> # NOTE: Must be store in 'DOS' file format convention
> ;   logon script = logon.cmd
>
> # This allows Unix users to be created on the domain controller via the
> SAMR
> # RPC pipe.  The example command creates a user account with a disabled
> Unix
> # password; please adapt to your needs
> ; add user script = /usr/sbin/adduser --quiet --disabled-password --gecos
> "" %u
>
> # This allows machine accounts to be created on the domain controller via
> the
> # SAMR RPC pipe.
> # The following assumes a "machines" group exists on the system
> ; add machine script  = /usr/sbin/useradd -g machines -c "%u machine
> account" -d /var/lib/samba -s /bin/false %u
>
> # This allows Unix groups to be created on the domain controller via the
> SAMR
> # RPC pipe.
> ; add group script = /usr/sbin/addgroup --force-badname %g
>
> ########## Printing ##########
>
> # If you want to automatically load your printer list rather
> # than setting them up individually then you'll need this
> #   load printers = yes
>
> # lpr(ng) printing. You may wish to override the location of the
> # printcap file
> ;   printing = bsd
> ;   printcap name = /etc/printcap
>
> # CUPS printing.  See also the cupsaddsmb(8) manpage in the
> # cupsys-client package.
> ;    printing = cups
> ;   printcap name = cups
>
> ############ Misc ############
>
> # Using the following line enables you to customise your configuration
> # on a per machine basis. The %m gets replaced with the netbios name
> # of the machine that is connecting
> ;   include = /home/samba/etc/smb.conf.%m
>
> # Most people will find that this option gives better performance.
> # See smb.conf(5) and /usr/share/doc/samba-doc/**
> htmldocs/Samba3-HOWTO/speed.**html
> # for details
> # You may want to add the following on a Linux system:
> #         SO_RCVBUF=8192 SO_SNDBUF=8192
> #   socket options = TCP_NODELAY
>
> # The following parameter is useful only if you have the linpopup package
> # installed. The samba maintainer and the linpopup maintainer are
> # working to ease installation and configuration of linpopup and samba.
> ;   message command = /bin/sh -c '/usr/bin/linpopup "%f" "%m" %s; rm %s' &
>
> # Domain Master specifies Samba to be the Domain Master Browser. If this
> # machine will be configured as a BDC (a secondary logon server), you
> # must set this to 'no'; otherwise, the default behavior is recommended.
> #   domain master = auto
>
> # Some defaults for winbind (make sure you're not using the ranges
> # for something else.)
> ;   idmap uid = 10000-20000
> ;   idmap gid = 10000-20000
> ;   template shell = /bin/bash
>
> # The following was the default behaviour in sarge,
> # but samba upstream reverted the default because it might induce
> # performance issues in large organizations.
> # See Debian bug #368251 for some of the consequences of *not*
> # having this setting and smb.conf(5) for details.
> ;   winbind enum groups = yes
> ;   winbind enum users = yes
>
> # Setup usershare options to enable non-root users to share folders
> # with the net usershare command.
>
> # Maximum number of usershare. 0 (default) means that usershare is
> disabled.
> ;    usershare max shares = 100
>
> # Allow users who've been granted usershare privileges to create
> # public shares, not just authenticated ones
>     usershare allow guests = yes
>     guest ok = yes
> ;    guest account = nobody
>     username map = /etc/samba/smbusers
>
> #======================= Share Definitions =======================
>
> # Un-comment the following (and tweak the other settings below to suit)
> # to enable the default home directory shares. This will share each
> # user's home director as \\server\username
> ;[homes]
> ;   comment = Home Directories
> ;   browseable = no
>
> # By default, the home directories are exported read-only. Change the
> # next parameter to 'no' if you want to be able to write to them.
> ;   read only = yes
>
> # File creation mask is set to 0700 for security reasons. If you want to
> # create files with group=rw permissions, set next parameter to 0775.
> ;   create mask = 0700
>
> # Directory creation mask is set to 0700 for security reasons. If you want
> to
> # create dirs. with group=rw permissions, set next parameter to 0775.
> ;   directory mask = 0700
>
> # By default, \\server\username shares can be connected to by anyone
> # with access to the samba server. Un-comment the following parameter
> # to make sure that only "username" can connect to \\server\username
> # The following parameter makes sure that only "username" can connect
> #
> # This might need tweaking when using external authentication schemes
> ;   valid users = %S
>
> # Un-comment the following and create the netlogon directory for Domain
> Logons
> # (you need to configure Samba to act as a domain controller too.)
> ;[netlogon]
> ;   comment = Network Logon Service
> ;   path = /home/samba/netlogon
> ;   guest ok = yes
> ;   read only = yes
>
> # Un-comment the following and create the profiles directory to store
> # users profiles (see the "logon path" option above)
> # (you need to configure Samba to act as a domain controller too.)
> # The path below should be writable by all users so that their
> # profile directory may be created the first time they log on
> ;[profiles]
> ;   comment = Users profiles
> ;   path = /home/samba/profiles
> ;   guest ok = no
> ;   browseable = no
> ;   create mask = 0600
> ;   directory mask = 0700
>
> [printers]
>     comment = All Printers
>     browseable = no
>     path = /var/spool/samba
>     printable = yes
> ;    guest ok = no
> ;    read only = yes
>     create mask = 0700
>
> # Windows clients look for this share name as a source of downloadable
> # printer drivers
> [print$]
>     comment = Printer Drivers
>     path = /var/lib/samba/printers
> ;    browseable = yes
> ;    read only = yes
> ;    guest ok = no
> # Uncomment to allow remote administration of Windows print drivers.
> # You may need to replace 'lpadmin' with the name of the group your
> # admin users are members of.
> # Please note that you also need to set appropriate Unix permissions
> # to the drivers directory for these users to have write rights in it
> ;   write list = root, @lpadmin
>
> # A sample share for sharing your CD-ROM with others.
> ;[cdrom]
> ;   comment = Samba server's CD-ROM
> ;   read only = yes
> ;   locking = no
> ;   path = /cdrom
> ;   guest ok = yes
>
> # The next two parameters show how to auto-mount a CD-ROM when the
> #    cdrom share is accesed. For this to work /etc/fstab must contain
> #    an entry like this:
> #
> #       /dev/scd0   /cdrom  iso9660 defaults,noauto,ro,user   0 0
> #
> # The CD-ROM gets unmounted automatically after the connection to the
> #
> # If you don't want to use auto-mounting/unmounting make sure the CD
> #    is mounted on /cdrom
> #
> ;   preexec = /bin/mount /cdrom
> ;   postexec = /bin/umount /cdrom
>
> [8CoreSHARED]
>     path = /home/wayne/8CoreSHARED
>     writeable = yes
> ;    browseable = yes
>     guest ok = yes
>
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