.. _appliance_root_user:

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Root user and appadmin user
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.. index:: Root user, appadmin, ssh

The users ``root`` and ``appadmin`` are system users known in the ``/etc/passwd`` file of the underlaying Linux operating system. 
These users can be used to login the Appliance Management UI. 

While the user ``root`` can be used to login to the machine via console or SSH, the user ``appadmin`` is only allowed to login to the Management UI. 
Therefore the user ``root`` can change the password of the user ``appadmin`` but the user appadmin can not change the password of the user root.
Both the users root and appadmin are allowed to change the passwords of all the LinOTP token administrators.