Cannot connect to the Docker daemon at unix:///var/run/docker.sock. Is the docker daemon runni

Cannot connect to the Docker daemon at unix:///var/run/docker.sock. Is the docker daemon running? 这个问题提示无法连接到Docker守护程序。要解决这个问题，您可以尝试以下步骤：
1. 首先，确保Docker守护程序正在运行。您可以使用以下命令来检查守护程序的状态：sudo service docker status。如果守护程序没有运行，您可以使用sudo service docker start命令来启动它。
2. 如果守护程序已经在运行，但您仍然无法连接到它，请检查docker.sock文件的权限。您可以使用ls -l /var/run/docker.sock命令来查看文件的权限。确保当前用户具有对该文件的访问权限。如果没有，请使用sudo chown <your_username> /var/run/docker.sock命令将文件的所有权更改为当前用户。
3. 如果上述步骤都没有解决问题，您可以尝试重启Docker服务。您可以使用以下命令来重启Docker服务：sudo service docker restart。

相关问题

Cannot connect to the Docker daemon at unix:///var/run/docker.sock. Is the docker daemon

The error message "Cannot connect to the Docker daemon at unix:///var/run/docker.sock. Is the docker daemon running?" indicates that there is a problem connecting to the Docker daemon. The Docker daemon is responsible for managing Docker containers and must be running for Docker commands to work.

In the provided references, the user encountered this issue after restarting the server, and the Docker containers were not working. They tried various solutions but were unable to resolve the problem until they manually started the Docker daemon.

To fix this issue, you can try the following steps:

1. Check if the Docker daemon is running by using the command: [2]

systemctl status docker

This command will show the status of the Docker service. If it is not running, you will need to start it.

2. Start the Docker daemon by using the command: [2]

dockerd

This command will start the Docker daemon and allow you to connect to it.

3. If the above steps do not resolve the issue, you can try restarting the Docker service: [2]

systemctl restart docker

This command will restart the Docker service and may help in resolving any underlying issues.

Additionally, you can use the following commands for troubleshooting:
- To check the running services, you can use: [3]

systemctl | grep running

This command will show the list of running services, and you can check if the Docker service is listed.

- To view the Docker service startup logs, you can use: [3]

journalctl -u docker

This command will display the logs related to the Docker service startup, which can help in identifying any errors or issues.

Remember to check the system requirements and ensure that Docker is properly installed and configured on your CentOS system.<span class="em">1</span><span class="em">2</span><span class="em">3</span>
#### 引用[.reference_title]
- *1* *2* *3* [cannot connect to the docker daemon at unix ///var/run/docker.sock. Is the docker daemon running?](https://blog.csdn.net/l751475472/article/details/122968595)[target="_blank" data-report-click={"spm":"1018.2226.3001.9630","extra":{"utm_source":"vip_chatgpt_common_search_pc_result","utm_medium":"distribute.pc_search_result.none-task-cask-2~all~insert_cask~default-1-null.142^v93^chatsearchT3_1"}}] [.reference_item style="max-width: 100%"]
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Cannot connect to the Docker daemon at unix:///var/run/docker.sock. Is the docker

Cannot connect to the Docker daemon at unix:///var/run/docker.sock. Is the docker daemon running?错误表示无法连接到Docker守护进程。这个错误通常由于Docker守护进程没有运行导致的。要解决这个问题，可以尝试以下步骤：

1.检查Docker守护进程是否正在运行。可以使用命令"service docker status"或"systemctl status docker"来检查守护进程的状态。如果守护进程没有运行，可以使用命令"service docker start"或"systemctl start docker"来启动守护进程。

2.如果守护进程已经在运行但仍无法连接，可以尝试重启Docker服务。使用命令"service docker restart"或"systemctl restart docker"来重启服务。

3.检查/var/run/docker.sock文件是否存在。这个文件是Docker守护进程的Unix套接字文件，用于与守护进程通信。如果该文件不存在，可能是由于守护进程没有正确启动导致的。可以使用命令"ls -l /var/run/docker.sock"来检查文件的存在性。如果文件不存在，可以尝试重新启动守护进程并检查问题是否得到解决。

如果上述方法仍然无法解决问题，可能需要进一步检查Docker的日志文件以获取更多详细的错误信息。可以使用命令"tail -f /var/log/docker.log"来查看日志文件的实时内容，以便找出导致连接问题的具体原因。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
#### 引用[.reference_title]
- *1* *3* [执行docker命令，出现Cannot connect to the Docker daemon at unix:///var/run/docker.sock.](https://blog.csdn.net/liyuanjunfrank/article/details/125196807)[target="_blank" data-report-click={"spm":"1018.2226.3001.9630","extra":{"utm_source":"vip_chatgpt_common_search_pc_result","utm_medium":"distribute.pc_search_result.none-task-cask-2~all~insert_cask~default-1-null.142^v93^chatsearchT3_1"}}] [.reference_item style="max-width: 50%"]
- *2* [ubuntu vps安装docker报错：Cannot connect to the Docker daemon at unix:///var/run/docker.sock....](https://download.csdn.net/download/weixin_38733787/14094320)[target="_blank" data-report-click={"spm":"1018.2226.3001.9630","extra":{"utm_source":"vip_chatgpt_common_search_pc_result","utm_medium":"distribute.pc_search_result.none-task-cask-2~all~insert_cask~default-1-null.142^v93^chatsearchT3_1"}}] [.reference_item style="max-width: 50%"]
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