1.What is Docker daemon?
The Docker daemon (dockerd) has two main responsibilities:
a) It listens to Docker API requests
b) It manages Docker objects such as images, containers, networks, and volumes
A daemon can also communicate with other daemons to manage Docker services.
Note: If you notice that the docker daemon is not running, you can start the daemon using the below command :
sudo systemctl start docker
2.What is DockerHub?
DockerHub is a public registry that is available for all. Docker is configured to look for images on DockerHub by default.
When you use the docker pull or docker run command, the required images are pulled from your configured registry. When you use the docker push command, your image is pushed to the configured registry.
Like GitHub, DockerHub is a remote repository for docker images.
To Create a DockerHub account click on the below link :
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_Sudipa