Samba Domain Controller with LDAP Backend

[kenton5]

I have followed this guide "http://www.unixmen.com/setup-samba-domain-controller-with-openldap-backend-in-ubuntu-13-04/" to try and set up samba to use ldap as the authentication. I got through the entire guide without error until i try to log into the domain or connect to the share. When trying to connect to the domain from a windows 7 client i get "An Active Directory Domain Controller for the domain "NOETIC" could not be contacted." When trying to map the share I get the error "You might not have permission to use this network resource... A device attached to the system is not functioning. I tried remaking the user account and now I am getting "Access Denied" but that is not my main issue I don't think.

I have tried looking at the SID and making sure that they match where they are supposed to go. It is probably some simple error but I am rather new to Linux and networking.

Here is my smb.conf

#======================= Global Settings =======================


#============= Configuring samba with LDAP settings ============

[global]
workgroup = NOETICFS
netbios name = NOETIC

deadtime = 10
log level = 1
log file = /var/log/samba/log.%m
max log size = 5000
debug pid = yes
debug uid = yes
syslog = 0
utmp = yes

security = user
domain logons = yes
domain master = yes
os level = 64
logon path =\\%N\%U\profile
logon home =\\%N\%U
logon drive = H:
logon script =logon.cmd

passdb backend = ldapsam:"ldap://ldap.hsv1.noeticstrategies.com/"
ldap ssl = off
ldap admin dn = cn=admin,dc=hsv1,dc=noeticstrategies,dc=com
ldap delete dn = no

# Sync UNIX password with Samba password
## Method 1:
ldap password sync = yes
## Method 2:
;ldap password sync = no
;unix password sync = yes
;passwd program = /usr/sbin/smbldap-passwd -u '%u'
;passwd chat = "Changing *\nNew password*" %n\n "*Retype new password*" %n\n"

ldap suffix = dc=hsv1,dc=noeticstrategies,dc=com
ldap user suffix = ou=Users
ldap group suffix = ou=Groups
ldap machine suffix = ou=Computers
ldap idmap suffix = ou=Idmap

add user script = /usr/sbin/smbldap-useradd -m '%u' -t 1
rename user script = /usr/sbin/smbldap-usermod -r '%unew' '%uold'
delete user script = /usr/sbin/smbldap-userdel '%u'
set primary group script = /usr/sbin/smbldap-usermod -g '%g' '%u'
add group script = /usr/sbin/smbldap-groupadd -p '%g'
delete group script = /usr/sbin/smbldap-groupdel '%g'
add user to group script = /usr/sbin/smbldap-groupmod -m '%u' '%g'
delete user from group script = /usr/sbin/smbldap-groupmod -x '%u' '%g'
add machine script = /usr/sbin/smbldap-useradd -w '%u' -t 1

## Browsing/Identification ###

# Change this to the workgroup/NT-domain name your Samba server will part of
#   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
#   name resolve order = wins lmhosts host bcast

# 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

# 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 #######

# 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

   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@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 = no

# This option controls how unsuccessful authentication attempts are mapped
# to anonymous connections
   map to guest = bad user

########## 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 = 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

############ 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 = no

#======================= 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 directory 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
# This might need tweaking when using external authentication schemes
;   valid users = %S

#===================== moved copy pasta =================

[NETLOGON]
path = /var/lib/samba/netlogon
guest ok = yes
read only = yes
browseable = no
#share modes = no

[PROFILES]
path = /var/lib/samba/profiles
browseable = no
writeable = yes
create mask = 0611
directory mask = 0700
profile acls = yes
csc policy = disable
map system = yes
map hidden = yes
guest ok = no
browseable = no

#===================== moved copy pasta =================


# 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

#Share for all files

[shares]
comment = Shared Files
path = /etc/shares
browsable = yes
guest ok = no
read only = no
create mask = 0755
valid users = "@Domain Users"

One thing i noticed in here that confused me was the [NETLOGON] share path. I read that this path should lead to some scripts and also that this path is different for most people. This path I have in my file does not lead to a folder with scripts in it, just an empty folder. I am not sure what this is about.

Here is my smbldap.conf

# $Id: smbldap.conf 139 2012-08-07 11:11:37Z fumiyas $
#
# smbldap-tools.conf : Q & D configuration file for smbldap-tools

#  This code was developped by IDEALX (http://IDEALX.org/) and
#  contributors (their names can be found in the CONTRIBUTORS file).
#
#                 Copyright (C) 2001-2002 IDEALX
#
#  This program is free software; you can redistribute it and/or
#  modify it under the terms of the GNU General Public License
#  as published by the Free Software Foundation; either version 2
#  of the License, or (at your option) any later version.
#
#  This program is distributed in the hope that it will be useful,
#  but WITHOUT ANY WARRANTY; without even the implied warranty of
#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
#  GNU General Public License for more details.
#
#  You should have received a copy of the GNU General Public License
#  along with this program; if not, write to the Free Software
#  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
#  USA.

#  Purpose :
#       . be the configuration file for all smbldap-tools scripts

##############################################################################
#
# General Configuration
#
##############################################################################

# Put your own SID. To obtain this number do: "net getlocalsid".
# If not defined, parameter is taking from "net getlocalsid" return
SID="S-1-1-11-1111111111-1111111111-111111111"

# Domain name the Samba server is in charged.
# If not defined, parameter is taking from smb.conf configuration file
# Ex: sambaDomain="IDEALX-NT"
sambaDomain="NOETICFS"

##############################################################################
#
# LDAP Configuration
#
##############################################################################

# Notes: to use to dual ldap servers backend for Samba, you must patch
# Samba with the dual-head patch from IDEALX. If not using this patch
# just use the same server for slaveLDAP and masterLDAP.
# Those two servers declarations can also be used when you have
# . one master LDAP server where all writing operations must be done
# . one slave LDAP server where all reading operations must be done
#   (typically a replication directory)

# Slave LDAP server URI
# Ex: slaveLDAP=ldap://slave.ldap.example.com/
# If not defined, parameter is set to "ldap://127.0.0.1/"
#slaveLDAP="ldap://ldap.example.com/"

# Master LDAP server URI: needed for write operations
# Ex: masterLDAP=ldap://master.ldap.example.com/
# If not defined, parameter is set to "ldap://127.0.0.1/"
masterLDAP="ldap://ldap.hsv1.noeticstrategies.com/"

# Use TLS for LDAP
# If set to 1, this option will use start_tls for connection
# (you must also used the LDAP URI "ldap://...", not "ldaps://...")
# If not defined, parameter is set to "0"
ldapTLS="0"

# How to verify the server's certificate (none, optional or require)
# see "man Net::LDAP" in start_tls section for more details
verify="none"

# CA certificate
# see "man Net::LDAP" in start_tls section for more details
cafile="/etc/smbldap-tools/ca.pem"

# certificate to use to connect to the ldap server
# see "man Net::LDAP" in start_tls section for more details
clientcert="/etc/smbldap-tools/smbldap-tools.hsv1.noeticstrategies.com.pem"

# key certificate to use to connect to the ldap server
# see "man Net::LDAP" in start_tls section for more details
clientkey="/etc/smbldap-tools/smbldap-tools.hsv1.noeticstrategies.com.key"

# LDAP Suffix
# Ex: suffix=dc=IDEALX,dc=ORG
suffix="dc=hsv1,dc=noeticstrategies,dc=com"
# Where are stored Users
# Ex: usersdn="ou=Users,dc=IDEALX,dc=ORG"
# Warning: if 'suffix' is not set here, you must set the full dn for usersdn
usersdn="ou=Users,${suffix}"

# Where are stored Computers
# Ex: computersdn="ou=Computers,dc=IDEALX,dc=ORG"
# Warning: if 'suffix' is not set here, you must set the full dn for computersdn
computersdn="ou=Computers,${suffix}"

# Where are stored Groups
# Ex: groupsdn="ou=Groups,dc=IDEALX,dc=ORG"
# Warning: if 'suffix' is not set here, you must set the full dn for groupsdn
groupsdn="ou=Groups,${suffix}"

# Where are stored Idmap entries (used if samba is a domain member server)
# Ex: idmapdn="ou=Idmap,dc=IDEALX,dc=ORG"
# Warning: if 'suffix' is not set here, you must set the full dn for idmapdn
idmapdn="ou=Idmap,${suffix}"

# Where to store next uidNumber and gidNumber available for new users and groups
# If not defined, entries are stored in sambaDomainName object.
# Ex: sambaUnixIdPooldn="sambaDomainName=${sambaDomain},${suffix}"
# Ex: sambaUnixIdPooldn="cn=NextFreeUnixId,${suffix}"
sambaUnixIdPooldn="sambaDomainName=${sambaDomain},${suffix}"

# Default scope Used
scope="sub"

# Unix password hash scheme (CRYPT, MD5, SMD5, SSHA, SHA, CLEARTEXT)
# If set to "exop", use LDAPv3 Password Modify (RFC 3062) extended operation.
password_hash="SSHA"

# if password_hash is set to CRYPT, you may set a salt format.
# default is "%s", but many systems will generate MD5 hashed
# passwords if you use "$1$%.8s". This parameter is optional!
password_crypt_salt_format="%s"

##############################################################################
#
# Unix Accounts Configuration
#
##############################################################################

# Login defs
# Default Login Shell
# Ex: userLoginShell="/bin/bash"
userLoginShell="/bin/bash"

# Home directory
# Ex: userHome="/home/%U"
userHome="/home/%U"

# Default mode used for user homeDirectory
userHomeDirectoryMode="700"

# Gecos
userGecos="System User"

# Default User (POSIX and Samba) GID
defaultUserGid="513"

# Default Computer (Samba) GID
defaultComputerGid="515"

# Skel dir
skeletonDir="/etc/skel"

# Treat shadowAccount object or not
shadowAccount="1"

# Default password validation time (time in days) Comment the next line if
# you don't want password to be enable for defaultMaxPasswordAge days (be
# careful to the sambaPwdMustChange attribute's value)
defaultMaxPasswordAge="45"
##############################################################################
#
# SAMBA Configuration
#
##############################################################################

# The UNC path to home drives location (%U username substitution)
# Just set it to a null string if you want to use the smb.conf 'logon home'
# directive and/or disable roaming profiles
# Ex: userSmbHome="\\PDC-SMB3\%U"
userSmbHome="\\192.168.1.62\%U"

# The UNC path to profiles locations (%U username substitution)
# Just set it to a null string if you want to use the smb.conf 'logon path'
# directive and/or disable roaming profiles
# Ex: userProfile="\\PDC-SMB3\profiles\%U"
userProfile="\\192.168.1.62\profiles\%U"

# The default Home Drive Letter mapping
# (will be automatically mapped at logon time if home directory exist)
# Ex: userHomeDrive="H:"
userHomeDrive="H:"

# The default user netlogon script name (%U username substitution)
# if not used, will be automatically username.cmd
# make sure script file is edited under dos
# Ex: userScript="startup.cmd" # make sure script file is edited under dos
userScript="logon.bat"

# Domain appended to the users "mail"-attribute
# when smbldap-useradd -M is used
# Ex: mailDomain="idealx.com"
mailDomain="noeticstrategies.com"

##############################################################################
#
# SMBLDAP-TOOLS Configuration (default are ok for a RedHat)
#
##############################################################################

# Allows not to use smbpasswd (if with_smbpasswd="0" in smbldap.conf) but
# prefer Crypt::SmbHash library
with_smbpasswd="0"
smbpasswd="/usr/bin/smbpasswd"

# Allows not to use slappasswd (if with_slappasswd="0" in smbldap.conf)
# but prefer Crypt:: libraries
with_slappasswd="0"
slappasswd="/usr/sbin/slappasswd"

# comment out the following line to get rid of the default banner
# no_banner="1"

The SID is not actually all 1's. It is set to the return i get from net getlocalsid. I read other things and saw that some people had to set their domain SID to this SID using net setdomainsid "SID........". I did this so net getdomainsid returns both domain SID and local SID as this same one. I am not positive that this is correct either but it did not seem to create any new errors.

Any help is appreciated. Thank you.

[kenton5]

Today I made a VM and tried again to follow the guide exactly. I got the exact same results with the exact same errors.

[zvone1986]

I have the same issue. I have followed dozens of tutorials and articles on how to setup SAMBA with LDAP backend on different machines. I have also tried different Linux distributions (Ubuntu, OpenSuse), but no luck.

My SAMBA and LDAP are successfully connected and i can administer LDAP database with smbldap tools from samba server. When i want to access my shares then i get Access Denied which i can also see in wireshark snoops from samba server. I can access only share called "public" which has nobody:nobody permissions on it.
Yet i cannot access directory of my user, while i can ssh (via putty) to it.

I have been struggling for a while with the problem, but still nothing. Not sure whether this is my Win7 client issue or something in the LDAP database...
Don't know what to do here, so any help is welcomed

Thanks in advance.