Anyone accessing the OnSite must log in by entering a username and password. Controlling access by requiring users to enter names and passwords is called
authentication. The usernames and passwords entered during login attempts are checked against a database that lists all the valid usernames along with their encrypted passwords. Access is denied if either the username or password is not valid.
Note: Even if a remote authentication server is specified, when an administrative user logs in through the Web Manager or through the OSD, then authentication for the administrative user account always falls back to local authentication if the server is not available. For all other types of logins, if an authentication method is specified without a local fallback (such as NIS/DownLocal), and if the authentication server is not available, then authentication fails and the user cannot log in.