docker 拉取镜像报错处理，Error response from daemon: Get “https://registry-1.docker.io/v2/“

1、检测是否开启网络

2、检测是否关闭防火墙；命令：(我是这个原因报错)

#关闭
systemctl stop firewalld
#禁止开机启动防火墙
systemctl disable firewalld
#查看防火墙状态
systemctl status firewalld

3、检测镜像源：使用超级管理员在/etc/docker/daemon.json下打开这个文件并输入以下配置信息;

{
	"registry-mirrors": [
	"https://docker.1panelproxy.com",
	"https://2a6bf1988cb6428c877f723ec7530dbc.mirror.swr.myhuaweicloud.com",
	"https://docker.m.daocloud.io",
	"https://hub-mirror.c.163.com",
	"https://mirror.baidubce.com",
	"https://your_preferred_mirror",
	"https://dockerhub.icu",
	"https://docker.registry.cyou",
	"https://docker-cf.registry.cyou",
	"https://dockercf.jsdelivr.fyi",
	"https://docker.jsdelivr.fyi",
	"https://dockertest.jsdelivr.fyi",
	"https://mirror.aliyuncs.com",
	"https://dockerproxy.com",
	"https://mirror.baidubce.com",
	"https://docker.m.daocloud.io",
	"https://docker.nju.edu.cn",
	"https://docker.mirrors.sjtug.sjtu.edu.cn",
	"https://docker.mirrors.ustc.edu.cn",
	"https://mirror.iscas.ac.cn",
	"https://docker.rainbond.cc"
	]
}