转载链接：https://testerhome.com/topics/9426
刚在新的Centos上安装Docker-CE,后运行docker run hello-world报错Cannot connect to the Docker daemon at unix:///var/run/docker.sock. Is the docker daemon running?
解决办法$ systemctl daemon-reload
$ sudo service docker restart
$ sudo service docker status (should see active (running))
$ sudo docker run hello-world