I am running an instance of Ubuntu Server 12.04 LTS.
I recently set it up and began adding user accounts to the server. One of the users can login to the server normally vis public key, however when he tries to change his password with
passwd he gets
Authentication token manipulation error. And when trying to run sudo commands, the user receives the error
Authentication failure when using the temp password created.
The user has been granted access to all privileges of sudo.
ALL = (ALL) ALL
I have tried both logging on through my terminal and
suing into the user and running the
sudo commands, and they authenticate just fine, I can not figure out what is having a problem with authentication.