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Linux Server Administration

A practical Linux ops playbook covering systemd services, process/disk/network diagnostics, log analysis and SSH hardening.

UtilitiesIntermediate★ 505⑂ 73AI score 9/10Last updated: Dec 11, 2025

What it does

  • systemd-first service management: writing unit files, daemon-reload, enabling at boot, and timers as a cron replacement.
  • Structured troubleshooting: a step-by-step path to isolate CPU, memory, disk I/O and network bottlenecks with top, free -h, iostat -x 1, ss -tunap.
  • Core ops knowledge: user management, package managers (apt/dnf/pacman), filesystem selection (ext4/XFS/Btrfs/ZFS), journalctl log analysis, ufw/firewalld rules, sysctl and ulimit tuning.
  • Explicit scope: advanced routing (BGP/OSPF), compliance-grade hardening, Ansible-scale automation and Kubernetes orchestration are deferred to other skills.

Who it's for

  • Backend, DevOps and SRE engineers deploying apps directly onto servers
  • Engineers managing Kubernetes nodes or container hosts who need solid Linux fundamentals
  • Anyone who wants a repeatable checklist for 3 a.m. production incidents

Example uses

  1. "Turn my Go binary into a managed service" → get a hardened unit file (ProtectSystem=strict, NoNewPrivileges), a dedicated system user, and the enable/start sequence.
  2. "The box suddenly got slow" → guided flow from uptime/top to CPU, memory, I/O and network specific diagnostics.
  3. "Lock down SSH access" → ed25519 key generation, PermitRootLogin no / PasswordAuthentication no, sshd -t validation, then a safe restart.

· · · Install guide · · ·

Try it now, no install

Paste this into Claude to use the skill without installing anything.

Read the instructions in this file and follow them to help me:
https://raw.githubusercontent.com/ancoleman/ai-design-components/HEAD/skills/administering-linux/SKILL.md

What I want: (describe your task here)

If Claude can't open the link, open it yourself and paste the contents instead.

↓ If it works for you, download the ZIP below and install it. Then it runs on its own — no pasting each time.

Install in the Claude app (no terminal)
  1. Download the ZIP with the button below.
  2. In Claude, open Settings → Capabilities and turn on 'Code execution and file creation'. (one time)
  3. Go to Customize → Skills → + → 'Upload a skill' and upload the ZIP.
↓ Download ZIP
Install in Claude Code

Let Claude do it — paste this into Claude Code

Install the skill I found on Claude Skill Mart.
Copy the skills/administering-linux folder from the GitHub repo ancoleman/ai-design-components into my ~/.claude/skills/administering-linux/.
When it's done, tell me in one line what this skill can do.

Install with a command instead

git clone https://github.com/ancoleman/ai-design-components.git && mkdir -p ~/.claude/skills && cp -r ai-design-components/skills/administering-linux ~/.claude/skills/

⚠ This is a third-party skill. Check the source repository before installing.

  1. Open a terminal.
  2. Clone the repository: git clone https://github.com/ancoleman/ai-design-components.git
  3. Create the Claude skills folder: mkdir -p ~/.claude/skills
  4. Copy just this skill: cp -r ai-design-components/skills/administering-linux ~/.claude/skills/
  5. Verify it landed: ls ~/.claude/skills/administering-linux
  6. Restart Claude Code and try a prompt like "create a systemd service for my app".
  7. (Recommended) When applying changes to a real server, keep a second SSH session open so a bad sshd or firewall change can't lock you out.
View source on GitHub ↗License: MIT