Server Admin Skill

System administration for a LAN deploy server. Use for OS-level work — package management, firewall, services, users, logs, hardware checks. For Docker/container ops use the deploy-remote skill.

When to Use This Skill

• Updating packages (apt update, security patches)
• Adding/modifying ufw firewall rules
• Managing systemd services (start, stop, enable, view status)
• Adding users, granting sudo, managing SSH keys for additional users
• Diagnosing disk full, memory pressure, high load
• Reading system logs (journalctl, /var/log/)
• Configuring cron jobs, swap, sysctl tunables
• Renewing certificates, rotating credentials
• General server maintenance and uptime work

Do NOT use for: