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Join in Active Directory Domain
2015/05/31
 
Join in Windows Active Directory Domain.
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 some required packages.
[root@dlp ~]#
dnf -y install realmd sssd oddjob oddjob-mkhomedir adcli samba-common-tools
[2] Join in Windows Active Directory Domain.
# change DNS settings to refer to AD's one

[root@dlp ~]#
nmcli c modify eno16777736 ipv4.dns 10.0.0.100

[root@dlp ~]#
nmcli c down eno16777736; nmcli c up eno16777736

Connection successfully activated (D-Bus active path: /org/freedesktop/NetworkManager/ActiveConnection/1)
# discover Active Directory domain

[root@dlp ~]#
realm discover FD3S.SRV.WORLD

fd3s.srv.world
  type: kerberos
  realm-name: FD3S.SRV.WORLD
  domain-name: fd3s.srv.world
  configured: no
  server-software: active-directory
  client-software: sssd
  required-package: oddjob
  required-package: oddjob-mkhomedir
  required-package: sssd
  required-package: adcli
  required-package: samba-common-tools
# join in Active Directory domain

[root@dlp ~]#
realm join FD3S.SRV.WORLD

Password for Administrator:
# AD's Administrator password
# make sure it's possible to get an AD user info or not

[root@dlp ~]#
id FD3S01\\Serverworld

uid=797801104(serverworld@fd3s.srv.world) gid=797800513(domain users@fd3s.srv.world) groups=797800513(domain users@fd3s.srv.world)
# make sure it's possible to switch to an AD user or not

[root@dlp ~]#
su - FD3S01\\Serverworld

Creating home directory for serverworld@fd3s.srv.world.
[serverworld@fd3s.srv.world@dlp ~]$
[3] If you'd like to omit domain name for AD user, configure like follows.
[root@dlp ~]#
vi /etc/sssd/sssd.conf
# line 16: change

use_fully_qualified_names =
False
[root@dlp ~]#
systemctl restart sssd

[root@dlp ~]#
id Administrator

uid=1313200500(administrator) gid=1313200513(domain users) groups=1313200513(domain users), 1313200512(domain admins),1313200519(enterprise admins),1313200520(group policy creator owners), 1313200572(denied rodc password replication group),1313200518(schema admins)
 
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