I followed this link to install ftp server.
And also added ftp user(ftpuser) and also added ftp password(1234567).
But when I am using this password in any wordpress site or any ftp software such as FileZilla it is showing 530 Login incorrect
vsftpd file
listen=YES
anonymous_enable=NO
write_enable=YES
local_enable=YES
dirmessage_enable=YES
use_localtime=YES
connect_from_port_20=YES
ftpd_banner=Welcome to blah FTP service.
secure_chroot_dir=/var/run/vsftpd/empty
pam_service_name=vsftpd
rsa_cert_file=/etc/ssl/certs/ssl-cert-snakeoil.pem
rsa_private_key_file=/etc/ssl/private/ssl-cert-snakeoil.key
adduser
instead ofuseradd
see this question – Kiwy Mar 24 '14 at 12:42