[Samba] Cannot authenticate the administrator account

[Sketch]

On Thu, 30 Apr 2015, Mike wrote:

> Everything works with the provisioning now except for kerberos.
>
> [root at dc1 ~]# kinit administrator at INTERNAL.EXAMPLE.COM
> Password for administrator at INTERNAL.EXAMPLE.COM:
> kinit: Preauthentication failed while getting initial credentials

In my experience, preauthentication failed typically means you mistyped 
your password. :)