In the terminal nothing shows up when you are typing a password. Just type your password as normal and press enter. If this isn't working then either you've got the wrong password or there's something else going on causing a problem. But in the terminal there won't be any dots or *'s replacing the letters in your password. Hope that helps.
Nothing like * og . replace them, its just that i can't type... When i press for example "A", nothing shows up...