Fix Cannot Connect to the Docker Daemon at ‘unix:///var/run/docker.sock’ 5f5g1

Using Docker, you run a service on your host operating system. The Docker application is currently only available for Linux due to its dependency on some Linux kernel features. However, macOS and Windows s can also run Docker. But, for the past couple of days, it is not working properly on Windows devices. Yes, many s reported that they are getting an error that says they “cannot connect to the Docker daemon at (unix:///var/run/docker.sock. Is the docker daemon running?)”.

Well, generally, this type of issue occurs when running various docker commands like docker info, docker pull, docker stop, docker run, etc. However, you don’t have to worry about it as we have compiled a few fixes in this article that will help you fix the error message that cannot connect to the docker daemon at unix:///var/run/docker.sock. Is the docker daemon running? So, let’s get started with them.

What is Docker Daemon? 1b4n23

Docker Daemon is a process that manages container images, networks, and storage volumes. Throughout the process, the Docker daemon monitors for requests made through the Docker API.

In addition to responding to Docker API requests, the Docker daemon (dockerd) manages Docker objects, including images, containers, networks, and volumes. As part of Docker service management, daemons can communicate with each other.

How to Fix Cannot Connect to the Docker Daemon g3q1e

The developers’ complaints drove us to develop effective solutions. A number of factors can cause this error, including Docker not running, When Docker is shutdown, it doesn’t do so cleanly, and Docker cannot be started due to a lack of root privileges.

So, as you understand the root cause of your problem, i.e., cannot connect to the docker daemon at unix:///var/run/docker.sock. Is the docker daemon running?; therefore, let’s look at some possible solutions.

Fix 1: Clean a ‘Failed Docker Pull’ and Start Docker Service 666p56

The Docker application might unexpectedly close during container pull, due to which you are getting this type of error. Docker’s service and socket files will be hidden in such circumstances. In order to communicate with Docker, a file called Docker.socket can be found at /var/run/docker.sock. Therefore, Docker will not start until we unmask the two files – Docker.service and docker.daemon.

• Open Terminal and use these commands:

  systemctl unmask docker.service
  systemctl unmask docker.socket
  systemctl start docker.service

• Now, we will need to delete the files from the Containers directory before restarting Docker if you are still experiencing the error after executing the commands below. Then, run this command. Nevertheless, make sure you know the root , as we will require elevated privileges.

  sudo su
  service docker stop
  cd /var/run/docker/libcontainerd
  rm -rf containerd/*
  rm -f docker-containerd.pid
  service docker start

Fix 2: Run the Docker Service with systemctl 1y649

There is a high probability that Docker’s service is not running if you just installed Docker on Ubuntu or rebooted your PC. It is the Docker daemon (dockerd) that provides service to Docker. A Docker API request is received here from the service, and it deals with various Docker objects such as images, containers, networks, and volumes.

Using systemctl, you can manage the system services running in Linux, replacing the old SysV init system. The service command can be used if you don’t have systemctl installed. However, in case you don’t know how to do this, make sure to perform these steps:

• Open Windows Terminal and execute the command to unmask Docker:

  sudo systemctl unmask docker

A mask can be thought of as a more robust version of disabling Docker.service. The error will appear if we attempt to start the service while the unit is masked. Masked unit files are linked to the device dev/null. With the command $ systemctl list-unit-files, you can list the status of all unit files.

• The systemctl command can be used once the docker unit is unmasked. Execute this command:

  systemctl start docker

• that Docker is running and active. To view the current status of a service, we will use the systemctl status command. You can execute this command:

  systemctl status docker

Fix 3: Run Docker with the Service Command 73142x

If the above method doesn’t work for you, then there are chances that your device may use the SysC init system. Well, if that’s the case, then chances are there that the systemctl command may not work for you.

Instead, you will have to use the service command to run the Docker Daemon without getting the error message cannot connect to the docker daemon at unix:///var/run/docker.sock. Is the docker daemon running? So, let’s see how you do it:

• Open Windows Terminal and execute this command:

  sudo service --status-all
  sudo service docker start

Fix 4: Run Dockerd (Docker Daemon) Service 6n2h18

You can also use the Dockerd service to run the Docker Daemon in case none of the above method work for you. However, to use the Dockerd service, you need to perform these steps:

1. Initially, open Windows Terminal and execute the command:

   sudo dockerd

Fix 5: Run Docker for s Without Root Privileges 1zx15

There are several s who reported that running the Docker without root privileges helps them to fix the error message that “cannot connect to the docker daemon at unix:///var/run/docker.sock. Is the docker daemon running?” So, let’s check out the steps:

1. Open Windows Terminal and execute the command:

   export DOCKER_HOST=t://localhost:2375

Fix 6: Run Docker Service with Snap 482n1j

If you installed it using Snap package manager, the Docker could be managed with the snap command. This is because the services managed by Snap are generally automated. It may, however, be necessary to interfere manually in situations like this. Therefore, to use this in order to run the Docker, you have to perform these steps:

• Open Windows Terminal and execute the command:

  sudo snap start docker

• Once the above command is executed, then run this command:

  sudo snap services

Fix 7: Reinstall The Docker 2s6r5v

If you have already tried all the above-mentioned fixes to resolve the error message “cannot connect to the docker daemon at unix:///var/run/docker.sock. Is the docker daemon running?”, then except for reinstalling the Docker on your PC, you have to option left. However, in case you don’t know how to reinstall the Docker, you can go to the Ubuntu official website and check how to do this. 

Sum Up | Start Docker Daemon gz4k

So, that’s how to fix the error message that cannot connect to the docker daemon at unix:///var/run/docker.sock. Is the docker daemon running? We hope that you find this troubleshooting article helpful. But, in case you have any doubts or queries on your mind, comment below and let us know. Also, don’t forget to check out our other guide at iTechHacks.

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