alpine-1:~# docker login
Login with your Docker ID to push and pull images from Docker Hub. If you don't have a Docker ID, head over to https://hub.docker.com to create one.
Username: 5k3105
Password:
Login Succeeded
alpine-1:~# docker pull hello-world
Using default tag: latest
Pulling repository docker.io/library/hello-world
Network timed out while trying to connect to https://index.docker.io/v1/repositories/library/hello-world/images. You may want to
check your internet connection or if you are behind a proxy.
alpine-1:~#