download_enable — When enabled, file downloads are permitted.
YES.
chown_uploads — When enabled, all files uploaded by anonymous users are owned by the user specified in the chown_username directive.
NO.
chown_username — Specifies the ownership of anonymously uploaded files if the chown_uploads directive is enabled.
root.
write_enable — When enabled, FTP commands which can change the file system are allowed, such as DELE, RNFR, and STOR.
YES.