To know the configuration of docker daemon/sercre

docker info

To exec inside the container with diffrent user

docker exec -ti –user user_name CONTAINER_ID bash

To know the pid of the container

docker top container_name/id

To know information about the container

docker inspect container_name/id

To know the statistics like ram and cpu consumed by each container

docker stats

To change the docker registry details for login from the host

Update the ~./docker/config.json

cat ~./docker/config.json

        "auths": {
                "": {}
        "HttpHeaders": {
                "User-Agent": "Docker-Client/19.03.13 (windows)"
        "credsStore": "desktop",
        "stackOrchestrator": "swarm"

cat ~./docker/daemon.json (for reference, this location is for windowns, for linux it will be in /etc/docker/daemon.json)

  "registry-mirrors": [],
  "insecure-registries": [],
  "debug": false,
  "experimental": false,
  "features": {
    "buildkit": true