I've completed the following steps:
- I have configured Ubuntu server with Key authentication and it is working fine.
- I have disabled password authentication for key authentication to work.
- The server is always accessed via remote terminals or putty.
Now all user accounts are able to log in with the authentication key and pass phrase, but now I want to create only one new user without key authentication. So how should I go about it?
On the other hand, this should not hamper other users who are using key authentication.