How to Fix Cannot Connect to the Docker Daemon
Fix the 'Cannot connect to the Docker daemon' error: check the service is running, fix socket permissions, start Docker Desktop, and verify DOCKER_HOST.
Sysadmin Desk Jul 12, 2026 8 min read
#Docker
10 guides
How to Install Docker Desktop on Windows 10 and Windows 11
Install Docker Desktop on Windows 10 or 11 with the WSL2 backend: enable virtualization, run the installer, verify, and fix the common setup errors.
Sysadmin Desk Jul 5, 2026 8 min read
How to Run an Nginx Reverse Proxy with Docker
Set up an Nginx reverse proxy with Docker Compose: route multiple apps on one host, configure proxy_pass, use Docker networks, and add TLS.
Sysadmin Desk Jun 27, 2026 9 min read
Docker Volumes Explained: Bind Mount vs Named Volume
Bind mount vs named volume in Docker: how they differ, when to use each, where data lives, permissions, backups, and the down -v data-loss trap.
Sysadmin Desk Jun 20, 2026 9 min read
How to Fix Docker Error: Port Is Already Allocated
Fix the Docker 'port is already allocated' error: find what's using the port with docker ps, ss, and lsof, then free it or change the mapping.
Sysadmin Desk Jun 13, 2026 8 min read
Automate Docker Workflows with Claude Code and MCP
Use Claude Code with an MCP server to inspect containers, read logs, and debug Docker on Windows and WSL — what to connect, safe scope, and example workflows.
MCSA Guru Team Jun 12, 2026 5 min read
Best Claude Code Skills for DevOps: Docker, Kubernetes, Terraform and CI
Claude Code Skills for IT and infra work — Docker, Kubernetes, Terraform, CI/CD, shell hardening, and incident runbooks — with example SKILL.md description lines.
MCSA Guru Team Jun 9, 2026 8 min read
Best MCP Servers for Sysadmins and DevOps
The MCP servers worth adding to Claude Code for ops work: filesystem, GitHub, Postgres, SQLite, Docker, fetch, Sentry, and Playwright — with honest caveats.
MCSA Guru Team Jun 9, 2026 9 min read
Pillar Guide
How to Install Docker on Ubuntu Server Step by Step
Install Docker on Ubuntu Server the right way: add the official apt repo and GPG key, install docker-ce plus the Compose plugin, and verify it works.
Sysadmin Desk Jun 6, 2026 9 min read
Pillar Guide
Docker Compose Beginner Guide: Run Multiple Containers with One File
Learn Docker Compose from scratch: write one YAML file to run multiple containers, with a working WordPress + MySQL example and the core up/down commands.
Sysadmin Desk May 26, 2026 10 min read