I want my server to not allow root login. For this I want to set the
No (in the SSH daemon config), but before doing that I want to make sure I can switch to root from another user account with
sudo su -.
The problem is that I reset the password for account admin and then, when I tried to to
sudo su -, it gives me a message: password incorrect, but the password is the correct one (the new one).
What could be the problem?? I already checked the account is not blocked.