How to resolve error when starting Docker service?

To fix the error of Docker service not starting, you can try the following steps:

1. Verify if the Docker service has been installed and properly configured. Confirm that Docker has been installed correctly and that the Docker service has been started. You can use the “docker version” command to check the installation of Docker.
2. Check the log information of the Docker service. You can find more error details by examining Docker’s log files, typically located in either /var/log/docker.log or /var/log/messages directory.
3. Check if there are enough system resources available. Docker requires a certain amount of system resources to run, including CPU, memory, and disk space. Insufficient system resources may cause Docker to fail to start. You can use the “docker system info” command to check the usage of system resources.
4. Check if the network is working properly. Docker services require internet access to download images and run containers. If there is an issue with the network, it may result in errors when starting Docker. You can use the ping command to test the connectivity of the network.
5. Check the system firewall and security group rules. If the system firewall or security group is restricting access to the Docker service, it may cause Docker to start with an error. You can try disabling the firewall or modifying the security group rules to resolve the issue.
6. Check the Docker configuration file. The configuration file for Docker is typically located in the /etc/docker/daemon.json directory, and you can resolve some startup errors by modifying this file.

If none of the methods mentioned above work, it is suggested to search for specific error messages or consult the official Docker documentation or community for a more detailed solution.