Select Device Settings → Security → Authentication to open the
Authentication page.
Select a server in the list.
Enable both the external and local authentication.
In the Authentication Type field, select the external
authentication you want: LDAP or Radius.
Select Use Local Authentication if Remote Authentication is not
available.
The HPDU always tries external authentication first. When external
authentication fails, the HPDU switches to local
authentication.
Click Save.
Edit or delete a server:
Click Edit, make any changes, and click Modify Server to save the
changes.
Click Delete to delete the server, and confirm the
operation.
Click Test Connection to test the connection to the selected
server. User credentials might be required.
To sort the access order of servers, click the Up arrow or Down
arrow, which determines the access priority, and click Save
Order.
Test the connection to a server.
Note -
When the HPDU is successfully connected to one external authentication
server, it stops trying to access the remaining servers in the
authentication list, regardless of the user authentication
result.
To disable external authentication without removing the servers: