anonymous_enable=YES
local_enable=NO
write_enable=NO
local_umask=022
anon_upload_enable=NO
anon_mkdir_write_enable=NO
anon_other_write_enable=NO
anon_world_readable_only=YES
connect_from_port_20=NO
hide_ids=YES
pasv_enable=YES
pasv_min_port=1024
pasv_max_port=1048
pasv_address=<<publlic dns name for the machine>>
pasv_addr_resolve=YES
listen_port=21
xferlog_enable=YES
ls_recurse_enable=NO
ascii_download_enable=NO
async_abor_enable=YES
one_process_model=YES
idle_session_timeout=120
data_connection_timeout=300
accept_timeout=60
connect_timeout=60
anon_max_rate=2048000
dirmessage_enable=YES
listen=YES
edit /etc/vsftpd/vsftpd.conf
sudo /etc/init.d/vsftpd start
open ports for inbound communication for 20-22
1024-1048
disable firewall
