pam_unix(vsftpd:auth): Couldn't open /etc/securetty: code example
Example: pam_unix(vsftpd:auth): Couldn't open /etc/securetty: No such file or directory
sudo cp /usr/share/doc/util-linux/examples/securetty /etc/securetty
sudo cp /usr/share/doc/util-linux/examples/securetty /etc/securetty