On Mon, Jul 09, 2018 at 12:19:09PM +0000, Ondrej Valousek wrote:
> Hi List,
> 
> Is there any way how can we recreate system keytab file of a machine joined 
> to AD if the file has been broken/deleted?
> I want to avoid doing join again as this would probably delete the existing 
> account (with all attributes we have set).
> Thanks,

If you used 'net ads join' to join then 'net ads keytab create' might
work for you because Samba can recover the keytab with the help of the
stored plain text password.

With 'adcli update' you have to kinit first as a use which can update
the password and then use the --login-ccache option because chances are
you cannot kinit with the keytab anymore. But you should use an account
which is only allowed to update the password because otherwise adcli
might try to update other attributes as well.

On AD you can use the ktpass.exe utility to export a fresh keytab.

HTH

bye,
Sumit

> 
> Ondrej
> 
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