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Samba BDC
2014/08/21
 
Samba PDC 構築済みのサブネット内に Samba BDC (バックアップドメインコントローラ) を構築します。
Samba PDC は同一サブネット内に一つのみ存在できますが、この Samba BDC はいくらでも構築することができます。
[1]
Samba BDC とするサーバーを LDAP クライアントとして設定しておきます。
[2] Samba BDC の設定です。
smb.conf の設定はほぼプライマリ側と同じで、異なるのはプライマリ側が「domain master = Yes」に対して、バックアップ側は「domain master = No」になる箇所のみです。
# EPEL からインストール

[root@bdc ~]#
yum --enablerepo=epel -y install samba smbldap-tools
[root@bdc ~]#
mv /etc/samba/smb.conf /etc/samba/smb.conf.bak

[root@bdc ~]#
cp /usr/share/doc/smbldap-tools-*/smb.conf /etc/samba/smb.conf

[root@bdc ~]#
vi /etc/samba/smb.conf
# 3行目:workgroup名を任意のものに変更

workgroup =
SERVER-WORLD
# 12行目:コメント化

#
min passwd length = 3
# 22行目:変更

ldap passwd sync =
yes
# 33,34行目:変更

Dos charset =
CP932

Unix charset =
UTF-8
# 42行目:変更(プライマリ側と異なる箇所)

domain master =
No
# 47行目:LDAPサーバー指定

passdb backend = ldapsam:
ldap://10.0.0.30/
# 48行目:LDAP管理者DN変更 (LDAPサーバーで指定したもの)

ldap admin dn =
cn=admin,dc=server,dc=world
# 50行目:LDAP suffix 変更 (LDAPサーバーで指定したもの)

ldap suffix =
dc=server,dc=world

ldap group suffix = ou=
groups

ldap user suffix = ou=
people
# 60行目:コメント解除

delete group script = /usr/sbin/smbldap-groupdel "%g"
# 64行目あたりに2行追記:管理者ユーザー指定、SSLなし

set primary group script = /usr/sbin/smbldap-usermod -g '%g' '%u'
admin users = domainadmin
ldap ssl = no
[root@bdc ~]#
mkdir /home/netlogon

[root@lan ~]#
/etc/rc.d/init.d/smb start

Starting SMB services:                     [  OK  ]
[root@lan ~]#
/etc/rc.d/init.d/nmb start

Starting NMB services:                     [  OK  ]
[root@lan ~]#
chkconfig smb on

[root@lan ~]#
chkconfig nmb on

[root@bdc ~]#    
# LDAP管理者パスワードをSambaに登録

Setting stored password for "cn=admin,dc=server,dc=world" in secrets.tdb
New SMB password:    
# LDAP管理者パスワード

Retype new SMB password:
[root@bdc ~]#
net rpc getsid
   
# プライマリ側のSID取得(後で入力するので控えておく)

Storing SID S-1-5-21-647443440-3639858122-3827560290 for Domain SERVER-WORLD in secrets.tdb
[root@bdc ~]#
perl /usr/share/doc/smbldap-tools-*/configure.pl

-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
       smbldap-tools script configuration
       -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
Before starting, check
 . if your samba controller is up and running.
 . if the domain SID is defined (you can get it with the 'net getlocalsid')

 . you can leave the configuration using the Ctrl-c key combination
 . empty value can be set with the "." character
-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
Looking for configuration files...

Samba Configuration File Path [/etc/samba/smb.conf] >    
# 空Enter
The default directory in which the smbldap configuration files are stored is shown.
If you need to change this, enter the full directory path, then press enter to continue.
Smbldap-tools Configuration Directory Path [/etc/smbldap-tools/] >  
# 空Enter

-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
Let's start configuring the smbldap-tools scripts ...
. workgroup name: name of the domain Samba act as a PDC
workgroup name [SERVER-WORLD] >    
# 空Enter

. netbios name: netbios name of the samba controler
netbios name [PDC-SRV] >    
# 空Enter

. logon drive: local path to which the home directory will be connected (for NT Workstations). Ex: 'H:'
logon drive [H:] >    
# 空Enter

. logon home: home directory location (for Win95/98 or NT Workstation).
(use %U as username) Ex:'\\PDC-SRV\%U'
logon home (press the "." character if you don't want homeDirectory) [\\PDC-SRV\%U] >
.
 
# ピリオド入力

. logon path: directory where roaming profiles are stored. Ex:'\\PDC-SRV\profiles\%U'
logon path (press the "." character if you don't want roaming profile) [\\PDC-SRV\profiles\%U] >
.
 
# ピリオド入力

. home directory prefix (use %U as username) [/home/%U] >    
# 空Enter

. default users' homeDirectory mode [700] >    
# 空Enter

. default user netlogon script (use %U as username) [logon.bat] >  
# 空Enter

default password validation time (time in days) [45] >    
# 空Enter

. ldap suffix [dc=server,dc=world] >    
# 空Enter

. ldap group suffix [ou=groups] >    
# 空Enter

. ldap user suffix [ou=people] >    
# 空Enter

. ldap machine suffix [ou=Computers] >    
# 空Enter

. Idmap suffix [ou=Idmap] >    
# 空Enter

. sambaUnixIdPooldn: object where you want to store the next uidNumber
and gidNumber available for new users and groups
sambaUnixIdPooldn object (relative to ) [sambaDomainName=SERVER-WORLD] >  
# 空Enter

. ldap master server: IP adress or DNS name of the master (writable) ldap server
ldap master server [10.0.0.30] >    
# LDAPサーバーのIPを確認して空Enter

. ldap master port [389] >    
# 空Enter

. ldap master bind dn [cn=admin,dc=server,dc=world] >    
# 空Enter

. ldap master bind password [] >    
# LDAP管理者パスワード

. ldap slave server: IP adress or DNS name of the slave ldap server: can also be the master one
ldap slave server [10.0.0.30] >    
# LDAPスレーブがあれば指定(なければ空Enter)

. ldap slave port [389] >    
# 空Enter

. ldap slave bind dn [cn=admin,dc=server,dc=world] >    
# 空Enter

. ldap slave bind password [] >    
# スレーブがあれば入力(なければテキトーに)

. ldap tls support (1/0) [0] >    
# 空Enter

. SID for domain ServerWorld: SID of the domain (can be obtained with 'net getlocalsid PDC-SRV')
SID for domain ServerWorld [S-1-5-21-3961433887-2246042430-2486930623] >
S-1-5-21-647443440-3639858122-3827560290
 
# PDCと同じもの

. unix password encryption: encryption used for unix passwords
unix password encryption (CRYPT, MD5, SMD5, SSHA, SHA) [SSHA] >  
# 空Enter

. default user gidNumber [513] >    
# 空Enter

. default computer gidNumber [515] >    
# 空Enter

. default login shell [/bin/bash] >    
# 空Enter

. default skeleton directory [/etc/skel] >    
# 空Enter

. default domain name to append to mail adress [] >    
# 空Enter

-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
backup old configuration files:
  /etc/smbldap-tools/smbldap.conf->/etc/smbldap-tools/smbldap.conf.old
  /etc/smbldap-tools/smbldap_bind.conf->/etc/smbldap-tools/smbldap_bind.conf.old
writing new configuration file:
  /etc/smbldap-tools/smbldap.conf done.
  /etc/smbldap-tools/smbldap_bind.conf done.

[root@bdc ~]#
/etc/rc.d/init.d/smb restart

Shutting down SMB services:                  [  OK  ]
Starting SMB services:                       [  OK  ]
[root@bdc ~]#
/etc/rc.d/init.d/nmb restart

Shutting down NMB services:                  [  OK  ]
Starting NMB services:                       [  OK  ]
# ユーザー情報確認

# プライマリ側と同じ結果が得られているか確認

[root@bdc ~]#
pdbedit -L

root:0:root
nobody:99:nobody
domainadmin:4294967295:domainadmin
hiroyuki-5ff0c2$:4294967295:HIROYUKI-5FF0C2$
rx-00$:4294967295:RX-00$

# ドメインユーザーに遷移可能か確認

[root@bdc ~]#
su - domainadmin

Creating directory '/home/domainadmin'.
[domainadmin@bdc ~]$
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