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