$ aptitude install samba
$ vi /etc/samba/smb.conf
    注释掉所有带pass字样的配置项
    security = share

    [fileserver]
    comment = Jenson File Server
    browseable = yes
    path = /var/ftp
    public = yes
    writable = no
    read only = yes
$ /etc/init.d/samba restart