On 2021-09-08 at 14:18-0400 Todd Mote <mo...@austin.utexas.edu> wrote:
> The $ at the end of the host name is for AD.  <short hostname>$ is
> the actual name of the account in AD.  The Kerberos utilities are
> just asking the KDC to renew tickets for accounts.  Computer
> accounts in AD happen to have a $ appended to them under the covers.
> They are obfuscated from most human views.  Msktutil may be
> appending the $ under its covers, you'd have to examine the source
> to know

From the msktutil man page:

  --computer-name <name>

         Specifies that the new account should use <name> for the
         computer account name and the SAM Account Name.  Note that a
         '$' will be automatically appended to the SAM Account Name.
         Defaults to the machine's hostname, excluding the realm, with
         dots replaced with dashes.

         That is: if the realm is EXAMPLE.COM, and the hostname is
         FOO.EXAMPLE.COM, the default computer name is FOO.  If the
         hostname is FOO.BAR.EXAMPLE.COM, the default computer name is
         FOO-BAR.

  --account-name <name>

         An alias for --computer-name that can be used when operating
         on service accounts.  Note that a '$' will not be
         automatically appended to the SAM Account Name when using
         service accounts.

We love msktutil (including its magnificent man page); it is our
preferred mechanism for joining hosts to AD.
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