vi /etc/vsftpd.conf listen=YES
userlist_deny=NO
userlist_enable=YES
anonymous_enable=YES
local_enable=YES
userlist_file=/etc/allowed_users
seccomp_sandbox=NO
dirmessage_enable=YES
use_localtime=YES
xferlog_enable=YES
connect_from_port_20=YES
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
local_root=/zq
anon_world_readable_only=no
write_enable=yes
anon_upload_enable=yes
anon_other_write_enable=yes