docker-compose.yml Explained Line by Line
A line-by-line walkthrough of a real docker-compose.yml file: services, image, ports, volumes, environment, depends_on, networks, and the top-level keys.
Sysadmin Desk Sep 5, 2026 8 min read
#DevOps
15 guides
Docker Security Best Practices for Beginners
Practical Docker security for beginners: drop root with USER, avoid --privileged, use minimal images, scan them, keep secrets out of env vars, limit resources, and more.
Sysadmin Desk Aug 26, 2026 11 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 Aug 22, 2026 5 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 Aug 11, 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 Aug 10, 2026 5 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 Aug 8, 2026 9 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 Jul 31, 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 Jul 31, 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 Jul 30, 2026 9 min read
How to Run WordPress with Docker Compose
Run WordPress with Docker Compose: a working wordpress + MySQL stack with named volumes for persistence, env vars, ports, a reverse proxy note, and backups.
Sysadmin Desk Jul 26, 2026 8 min read
How to Back Up Docker Volumes
Back up Docker named volumes the reliable way: tar a volume via a temp container, restore it, dump databases properly, schedule it, and move data between hosts.
Sysadmin Desk Jul 19, 2026 8 min read
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
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
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