VSFTP specific user should have access to specific directory in centos 6.8

I have configured group and user like bellow , and now when user login through winSCP or filezilla they can go to back and can see another directory as well .i just want to this user should have access specific directory and can’t go any other directory .|

groupadd ftp-users

useradd -g ftp-users -d /var/ftp/pub aftp

chown aftp:ftp-users /var/ftp/pub

chmod 777 /var/ftp/pub

vi /etc/vsftpd/vsftpd.conf >> chroot_local_user=YES

setsebool -P allow_ftpd_anon_write=1

setsebool allow_ftpd_full_access on

getsebool -a | grep ftp

setsebool -P ftp_home_dir on

chcon -t public_content_rw_t /var/ftp/pub

passwd [username]

sudo service vsftpd restart


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