Docker408错误：Error response from daemon: error parsing HTTP 408 response body: invalid character ‘＜‘

错误现象：

Using default tag: latest
Error response from daemon: error parsing HTTP 408 response body: invalid character '<' looking for beginning of value: "
408 Request Time-out
\nYour browser didn't send a complete request in time.\n\n\n"

解决办法：

此时需要修改当前网卡的MTU为900

#临时修改：  
ifconfig eth0 mtu 900
#永久修改(尝试设置，但是失败了...)：  
#vi /etc/network/interfaces
#【在最后增加内容: mtu 900 】...
【然后重启网卡】
/etc/init.d/networking restart