[Samba] Cannot authenticate the administrator account

[Mike]

So close . . .

Reprovision completed.

Server Role: active directory domain controller

Hostname: internal

NetBIOS Domain: INTERNAL

DNS Domain: internal.example.com

DOMAIN SID: S-1-5-21-123456789-123456789-123456789

----------------------------------------------

]# hostname -f
internal.example.com

]# hostname -s
internal

]# hostname -d

example.com

---------------------------------------------

DNS test all work correctly.

---------------------------------------------

]# klist
Ticket cache: FILE:/tmp/krb5cc_0
Default principal: administrator at EXAMPLE.COM

Valid starting       Expires              Service principal
04/29/2015 10:20:18  04/29/2015 20:20:18  krbtgt/EXAMPLE.COM at EXAMPLE.COM
    renew until 04/30/2015 10:19:53

BUT ---

]# kinit administrator at EXAMPLE.COM
kinit: Cannot find KDC for realm "EXAMPLE.COM" while getting initial
credentials

]# kinit administrator at INTERNAL.EXAMPLE.COM
kinit: Cannot contact any KDC for realm 'INTERNAL.EXAMPLE.COM' while
getting initial credentials