Ubuntu 14.04
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Samba Winbind
2014/04/26
 
Join in Windows Active Directory Domain with Samba Winbind.
This tutorial needs Windows Active Directory Domain Service in your LAN.
This example shows to configure on the environment below.
Domain Server
: Windows Server 2012 R2

Domain Name
: FD3S01

Realm
: FD3S.SRV.WORLD

Hostname
: fd3s.srv.world
[1] Install Winbind
root@smb:~#
apt-get -y install winbind libpam-winbind libnss-winbind krb5-config
# specify Realm

 +------------------+ Configuring Kerberos Authentication +------------------+
 | When users attempt to use Kerberos and specify a principal or user name   |
 | without specifying what administrative Kerberos realm that principal      |
 | belongs to, the system appends the default realm.  The default realm may  |
 | also be used as the realm of a Kerberos service running on the local      |
 | machine.  Often, the default realm is the uppercase version of the local  |
 | DNS domain.                                                               |
 |                                                                           |
 | Default Kerberos version 5 realm:                                         |
 |                                                                           |
 | FD3S.SRV.WORLD________________________________________________________ |
 |                                                                           |
 |                                  <Ok>                                     |
 |                                                                           |
 +---------------------------------------------------------------------------+
# specify the hostname of AD DS

     +--------------+ Configuring Kerberos Authentication +---------------+
     | Enter the hostnames of Kerberos servers in the FD3S.SRV.WORLD   |
     | Kerberos realm separated by spaces.                                |
     |                                                                    |
     | Kerberos servers for your realm:                                   |
     |                                                                    |
     | fd3s.srv.world_________________________________________________ |
     |                                                                    |
     |                               <Ok>                                 |
     |                                                                    |
     +--------------------------------------------------------------------+
# specify the hostname of AD DS

 +------------------+ Configuring Kerberos Authentication +------------------+
 | Enter the hostname of the administrative (password changing) server for   |
 | the FD3S.SRV.WORLD Kerberos realm.                                     |
 |                                                                           |
 | Administrative server for your Kerberos realm:                            |
 |                                                                           |
 | fd3s.srv.world________________________________________________________ |
 |                                                                           |
 |                                  <Ok>                                     |
 |                                                                           |
 +---------------------------------------------------------------------------+
[2] Configure Winbind
root@smb:~#
vi /etc/samba/smb.conf
# line 29: change workgroup name to the one for AD DS and add lines like follows

   workgroup =
FD3S01

   password server = fd3s.srv.world
   realm = FD3S.SRV.WORLD
   security = ads
   idmap config * : range = 16777216-33554431
   template homedir = /home/%U
   template shell = /bin/bash
   winbind use default domain = true
   winbind offline logon = false
root@smb:~#
vi /etc/nsswitch.conf
# line 7: add like follows

passwd:
compat
winbind

group:
compat
winbind

shadow:
compat
winbind
root@smb:~#
vi /etc/pam.d/common-session
# add at the last line if you need ( auto create a home directory when initial login )

session optional        pam_mkhomedir.so skel=/etc/skel umask=077

root@smb:~#
vi /etc/network/interfaces
# change name server to AD's one

dns-nameservers
10.0.0.200
root@smb:~#
ifdown eth0 && ifup eth0
# join AD Domain ( net ads join -U [administrative user on AD])

root@smb:~#
net ads join -U Serverworld

Enter Serverworld's password:
Using short domain name -- FD3S01
Joined 'SMB' to dns domain 'fd3s.srv.world'
No DNS domain configured for smb. Unable to perform DNS Update.
DNS update failed: NT_STATUS_INVALID_PARAMETER
root@smb:~#
initctl restart winbind

winbind start/running, process 2721
root@smb:~#
initctl restart smbd

smbd start/running, process 2702
root@smb:~#
initctl restart nmbd

nmbd start/running, process 2714
# display user info on AD

root@smb:~#
wbinfo -u

hiroyuki
guest
krbtgt
linux
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serverworld
sqladmin
#switch to a user on AD

root@smb:~#
su - serverworld

Creating directory '/home/serverworld'.
serverworld@smb:~$
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