ftp> ^Z
[3]+  Stopped                 ftp localhost
root@ldg:/etc# passwd admin
Enter new UNIX password:
Retype new UNIX password:
passwd: password updated successfully
root@ldg:/etc# ftp localhost
Connected to localhost.
220 (vsFTPd 3.0.2)
Name (localhost:admin): admin
331 Please specify the password.
Password:
530 Login incorrect.
Login failed.
ftp>