You need to stop the Docker daemon first and then start it:

To stop the Docker daemon:

​​sudo /etc/init.d/docker stop​​

To start the Docker daemon:

​​sudo /etc/init.d/docker start​​

This will reset Docker, after which all the commands should work properly.

If the above commands do not work, then just reboot:

​​sudo reboot​​

6 down vote

You need to stop the Docker daemon first and then start it:

To stop the Docker daemon:

​​sudo /etc/init.d/docker stop​​

To start the Docker daemon:

​​sudo /etc/init.d/docker start​​

This will reset Docker, after which all the commands should work properly.

If the above commands do not work, then just reboot:

​​sudo reboot​​