Configure Vsftpd in amazon ec2 instance
pasv_enable=YES
pasv_min_port=12000
pasv_max_port=12100
port_enable=YES
pasv_address=<public ip of your elastics>
pasv_enable=YES
pasv_min_port=12000
pasv_max_port=12100
port_enable=YES
pasv_address=<public ip of your elastics>