Step 4: Logout and log back inĪfter adding the user to the docker group, you may need to logout and log back in to apply the changes to the user’s permissions. ![]() Replace with the name of the user that you want to add to the docker group. You can add the user to the docker group by running the following command: sudo usermod -aG docker The user running Docker commands should be added to the docker group to have appropriate permissions to access the Docker daemon. If the permissions are not correct, you can change them by running the following command: sudo chown root:docker /var/run/docker.sock The output of this command should show that the owner of the file is root and the group is docker. You can check the permissions by running the following command: ls -l /var/run/docker.sock The Docker socket file, which is located at /var/run/docker.sock, should have appropriate permissions for the user running Docker commands to access it. If the Docker daemon is not running, you can start it by running the following command: sudo systemctl start docker You can do this by running the following command: sudo systemctl status docker The first step to fixing this error message is to check that the Docker daemon is running. ![]() Step 1: Check that the Docker daemon is running In this blog post, we will discuss how to fix this error message. This error message indicates that the Docker client is unable to connect to the Docker daemon due to permission issues. However, sometimes when you try to run Docker commands, you may encounter an error message that says “Cannot connect to the Docker daemon at unix:/var/run/docker.sock”. Docker is a popular platform for building, shipping, and running applications in containers.
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