[Samba] Samba + ldap + cannot find domain

Thu Feb 18 12:32:30 UTC 2016

On 18/02/16 10:59, Dave Beach wrote:
>>> This makes no sense to me. Am I missing something obvious?
>> You may be, but how can we tell, we cannot see your smb.conf
> Complete smb.conf below:
>
> # 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.
>
> #======================= Global Settings =======================
>
> [global]
>
> ## Browsing/Identification ###
>
> # Change this to the workgroup/NT-domain name your Samba server will part of
>     workgroup = DRBHOME
>
> # 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
>
> #### 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
>      interfaces = eth1
>
> # 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 = 8192
>
> # 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 #######
>
> # Server role. Defines in which mode Samba will operate. Possible
> # values are "standalone server", "member server", "classic primary
> # domain controller", "classic backup domain controller", "active
> # directory domain controller".
> #
> # Most people will want "standalone sever" or "member server".
> # Running as "active directory domain controller" will require first
> # running "samba-tool domain provision" to wipe databases and create a
> # new domain.
>     server role = standalone server
>
> # If you are using encrypted passwords, Samba will need to know what
> # password database type you are using.
> ;   passdb backend = tdbsam
>      passdb backend = ldapsam:ldap://127.0.0.1
>
> ;   obey pam restrictions = yes
>      obey pam restrictions = no
>
> # 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 at informatik.tu-muenchen.de> for
> # sending the correct chat script for the passwd program in Debian Sarge).
>     passwd program = /usr/sbin/smbldap-passwd -u %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
>      map to guest = never
>
> ########## Domains ###########
>
> #
> # The following settings only takes effect if 'server role = primary
> # classic domain controller', 'server role = backup domain controller'
> # or '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 = netlogon.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
>    add user script = /usr/sbin/smbldap-useradd -m "%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
>    add machine script = /usr/sbin/smbldap-useradd -w "%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
>    add group script = /usr/sbin/smbldap-groupadd -p "%g"
>
> ############ 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
>
> # 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
>
> # 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
>
>
> ######## added from old config file
> time server = yes
> security = user
> ;server string = DRBGATE
> domain logons = yes
> domain master = yes
> lanman auth = no
> ;ldap admin dn = "cn=Manager,dc=drbhome,dc=ca"
> ldap admin dn = "cn=admin,dc=drbhome,dc=ca"
> ldap delete dn = yes
> ldap group suffix = ou=Groups
> ldap idmap suffix = ou=Users
> ldap machine suffix = ou=Computers
> ldap passwd sync = yes
> ldap ssl = off
> ldap suffix = dc=drbhome,dc=ca
> ldap user suffix = ou=Users
> local master = yes
> log level = 3
> name resolve order = lmhosts host bcast
> netbios name = DRBGATE
> os level = 20
> preferred master = yes
> client lanman auth = no
> client ntlmv2 auth = yes
> client plaintext auth = no
> add user to group script = /usr/sbin/smbldap-groupmod -m "%u" "%g"
> deadtime = 5
> delete group script = /usr/sbin/smbldap-groupdel "%g%
> delete user from group script = /usr/sbin/smbldap-groupmod -x "%u" "%g"
> delete user script = /usr/sbin/smbldap-userdel "%u"
> ;enable privileges = yes
> encrypt passwords = yes
> hosts allow = 192.168.2. 127.
> set primary group script = /usr/sbin/smbldap-usermod -g "%g" "%u"
> ;announce as = NT Server
>
>
> #======================= Share Definitions =======================
>
> ;[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.
> # The following parameter makes sure that only "username" can connect
> # to \\server\username
> # 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/shares/netlogon
> ;   guest ok = yes
> ;   read only = yes
>     writable = no
> ;   share modes = no
>
> # 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
> #
> [common_share]
>    comment = Common writable share
>    path = /home/common
>    read only = no
>    public = yes
> #
> [admin_share]
>    comment = Admin read-only share
>    path = /home/shared/admin
>    read only = yes
>    public = yes
> #
> [dave_share]
>    comment = Dave's network drive
>    path = /home/dave
>    valid users = dave
>    public = no
>    writable = yes
>    printable = no
> #
> [bonnie_share]
>    comment = Bonnie's network drive
>    path = /home/bonnie
>    valid users = bonnie
>    public = no
>    writable = yes
>    printable = no
> #
> [dave_backup]
>    comment = Dave's backup drive
>    path = /backup/dave
>    valid users = dave
>    public = no
>    writable = yes
>    printable = no
> #
> [bonnie_backup]
>    comment = Bonnie's backup drive
>    path = /backup/bonnie
>    valid users = bonnie
>    public = no
>    writable = yes
>    printable = no
> #
> [pc-tv_backup]
>    comment = pc-tv backup drive
>    path = /backup/pc-tv
>    valid users = dave
>    public = no
>    writable = yes
>    printable = no
> #
> [root_share]
>    path = /
>    public = yes
>    writable = yes
>    valid users = dave
>    printable = no
>    browsable = yes
> #
>
>

OK, after wading through all the cruft, it turns out you are running an 
NT-4 style PDC and you are only using eth1.

Is ldap running on the Samba machine ?
Have you set the ldap password with 'smbpasswd -w'
I would remove this line: server role = standalone server
You are not running a standalone server.

What have you got in /etc/hosts ?
It may work better if you change the passdb line to 'passdb backend = 
ldapsam'

Can you also post the log where it shows asking for the wrong domain.

Rowland