Docker Error
Fix "Cannot connect to the Docker daemon at unix:///var/run/docker.sock"
Developer guide and instant terminal command to diagnose and solve this error.
Terminal Output
$Cannot connect to the Docker daemon at unix:///var/run/docker.sock. Is the docker daemon running?
Why Does This Error Happen?
The Docker service is stopped, Docker Desktop is not started, or the current user lacks permission to access the Docker socket.
Instant Terminal One-Liner Fixes
Linux (Bash / Zsh)
sudo systemctl restart docker
macOS (Terminal / iTerm2)
open -a Docker
Windows (PowerShell Run as Administrator)
Start-Process "C:\Program Files\Docker\Docker\Docker Desktop.exe"
Comprehensive Step-by-Step Resolution
- 1On Linux: Start the systemd service ("sudo systemctl start docker").
- 2Add your user to docker group: "sudo usermod -aG docker $USER" and re-login.
- 3On Windows / Mac: Launch Docker Desktop from applications.
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Frequently Asked Questions
Frequently Asked Questions
Frequently Asked Questions
Everything you need to know regarding specifications, syntax, and security best practices.
The Docker service is stopped, Docker Desktop is not started, or the current user lacks permission to access the Docker socket.