New user can't login from FTP in ubuntu server 14.04

Question

I have install a new ubuntu server 14.04 instance on our server and creating a user for FTP access.but the the user can log in via terminal on the server but can't login via FTP.I am using proftpd for FTP server.Can anyone help me out from this situation?

Answer 1

On server machine:

sudo service proftpd restart

then

netstat -tpan | grep 21

make sure proftp is open on the server machine on 0.0.0.0 or public ip

Use

nmap my.server.ip.num

from the client machine to make sure the port is open (21).