Docker Error response from daemon，Docker 换镜像

## 编辑文件
vim /etc/docker/daemon.json

## 将以下内容复制到文件中

 {
   "registry-mirrors": ["https://registry.docker-cn.com"]
 }

systemctl restart docker

## 编辑文件
vi /etc/resolv.conf

## 将以下内容复制到文件中
nameserver 8.8.8.8
nameserver 8.8.8.4

## centos
systemctl restart network

## mac
ifconfig en0 down
ifconfig en0 up

## 找到可用的IP地址，输入以下命令：

dig @114.114.114.114 registry-1.docker.io

## 出现如下：

J-pro:~ will$ dig @114.114.114.114 registry-1.docker.io

; <<>> DiG 9.10.6 <<>> @114.114.114.114 registry-1.docker.io

; (1 server found)

;; global options: +cmd

;; Got answer:

;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 13913

;; flags: qr rd ra; QUERY: 1, ANSWER: 8, AUTHORITY: 0, ADDITIONAL: 1

;; OPT PSEUDOSECTION:

; EDNS: version: 0, flags:; udp: 512

;; QUESTION SECTION:

;registry-1.docker.io. IN A

;; ANSWER SECTION:

registry-1.docker.io. 41 IN A 52.54.232.21

registry-1.docker.io. 41 IN A 52.72.232.213

registry-1.docker.io. 41 IN A 18.232.227.119

registry-1.docker.io. 41 IN A 34.195.246.183

registry-1.docker.io. 41 IN A 3.223.220.229

registry-1.docker.io. 41 IN A 3.224.175.179

registry-1.docker.io. 41 IN A 3.94.35.164

registry-1.docker.io. 41 IN A 52.4.20.24

;; Query time: 99 msec

;; SERVER: 114.114.114.114#53(114.114.114.114)

;; WHEN: Sun Jul 26 11:22:46 CST 2020

;; MSG SIZE  rcvd: 177

## 编辑hosts文件
vi /etc/hosts
## 加入上述找到的可用IP地址
52.87.94.70 registry-1.docker.io

## 刷新hosts
source /etc/hosts