text: Locally administered users can coexist with remote authentication. 
  
  **4.4.1 Default superuser account**
  
  Every system has a default user called*superuser*. Superuser cannot be deleted or modified, 
  except for changing the password and SSH key. Superuser is a*local*user and cannot be 
  authenticated remotely. 
  
  **Note:**Superuser is the only user allowed to log in to the Service Assistant Tool. It is also 
  the only user allowed to run**sainfo**and**satask**commands through the CLI. 
  
  Superuser is a member of the SecurityAdmin user group, which is the most privileged role 
  within the system. 
  
  The password for superuser is set during system setup. The superuser password can be 
  reset to its default value of passw0rd using the technician port. 
  
  **4.4.2 Local authentication**
  
  A*local user*is a user whose account is managed entirely on the system. A local user belongs 
  to one user group only, and it must have a password, an SSH public key, or both. Each user 
  has a name, which must be unique across all users in one system. 
  
  User names can contain up to 256 printable American Standard Code for Information 
  Interchange (ASCII) characters. Forbidden characters are the single quotation mark ('), colon 
  (:), percent symbol (%), asterisk (*), comma (,), and double quotation marks (“). A user name 
  cannot begin or end with a blank space. 