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
#DevOps
11 guides
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
Claude Code MCP Security Risks and Best Practices
The real security risks of MCP servers in Claude Code — over-broad access, secrets in config, prompt injection, untrusted servers — and how to lock each one down.
MCSA Guru Team Jun 14, 2026 6 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
Claude Code Setup for Sysadmins: A Practical Guide
Set up Claude Code for IT and infrastructure work — install on Windows and WSL, user vs project config, safe permissions, the right MCP servers, and guardrails.
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
Best Claude Code Hook Examples to Copy in 2026
Practical Claude Code hook examples worth copying — auto-format, block destructive commands, notify on stop, log activity, and load context on session start.
MCSA Guru Team Jun 8, 2026 5 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
Best Claude Code Skills in 2026: What's Worth Installing or Building
The Claude Code Skills worth using in 2026: bundled /code-review, /debug, /run, /verify, plus installable skill plugins with links and install commands.
MCSA Guru Team Mar 18, 2026 9 min read