Docker pull error?

  docker, question

The following error occurred in docker pull image. How to solve it?

图片描述

➜  ~ docker version
 Client:
 Version:      17.04.0-ce
 API version:  1.28
 Go version:   go1.7.5
 Git commit:   4845c56
 Built:        Mon Apr  3 18:22:23 2017
 OS/Arch:      linux/arm
 
 Server:
 Version:      17.04.0-ce
 API version:  1.28 (minimum version 1.12)
 Go version:   go1.7.5
 Git commit:   4845c56
 Built:        Mon Apr  3 18:22:23 2017
 OS/Arch:      linux/arm
 Experimental: false

Most likely there is a problem with your proxy, check your proxy settings.