Confused Over Sudo / User Issue.....

[Tom H]

On Sat, Feb 8, 2020 at 6:31 AM Eddie O'Connor <eoconnor25 at gmail.com> wrote:
>
> At my corporate site we have Windows computers and mostly Linux
> servers, some of the workers in the IT department are "permitted" to
> install Ubuntu (18.04) on their personal machines if they so choose.
> One of out Supervisors has done this BUT? Somehow hes unable to
> "sudo" anything! And what I thought was just a messed up password
> situation goes "deeper". When he enters his REGULAR account
> credentials he can do administrative things, but no sudo works, ever,
> regardless of the command. Mind you...his login comes from the
> Windows AD (A-ctive D-irectory) server, along with his Outlook email
> etc...but hes not able to do anything with sudo with this laptop.
> What could possibly be wrong? I had thought it might be something
> with the /etc/passwd files but all looks legit...then we had him
> change his password and the change too effect just fine, he's able
> to access the network and traverse files et al......but STILL he's
> unable to "sudo" in the Terminal. Can anyone shed some light on this
> issue?....has anyone seen this before? Is there something I might
> have overlooked? (maybe a hidden file is missing?...or there's
> something wrong with a file-path?

The "sudo" group mustn't exist in AD. And even if it does, you'd have
to modify sudoers to use "%domain\sudo" instead of sudo (I'm not sure
whether you can keep "%sudo ...").

Is there an admin group in AD to which the user belongs, for which a
sudoers entry can be added?