docker login, pull 등 도커 서버와 연결이 안될 때 Error response from daemon: Get "https://registry-1.docker.io/v2/": net/http: request canceled while waiting for connection (Client.Timeout exceeded while awaiting headers) $ sudo systemctl daemon-reload $ sudo systemctl restart docker $ sudo systemctl status docker https://www.edureka.co/community/82700/response-daemon-https-registry-docker-connection-refused