ubuntu tftp

sudo apt-get install tftp tftpd
sudo apt-get install xinetd

tftp127.0.0.1可以put/get，但是从设备上tftp put总是无响应（wireshark结果）。安装Xinetd，配置/etc/xinet.d/tftp后：
service tftp
{
          socket_type               = dgram
          protocol                  = udp
          wait                      = yes
          user                      = root
          server                    = /usr/sbin/in.tftpd
          server_args               = -s /tftpboot
          disable                   = no
          per_source                = 11
          cps                       = 100 2
          flags                     = IPv4
}

cd /
sudo mkdir tftpboot
sudo chmod 777 tftpboot

sudo /etc/init.d/xinetd restart