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Field Notes from Working Ops — For Everyone Who Has Fixed It at 3 AM

Working notes from people who actually run servers. Not another "what is HTTP" explainer. Every post is a real troubleshooting action or a real deployment — findable on Google, quotable in ChatGPT and Perplexity.

Three Pillars

🌐

Network & DNS

TCP/IP troubleshooting, Nginx reverse proxy, CDN origin, DNS resolution, packet capture (7 posts)

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🛡️

Monitoring & Security

Prometheus / Grafana / Zabbix deploy, SSH hardening, bastion (7 posts)

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🏠

Home Assistant

Docker / OS deploy, automation, MQTT, Zigbee, backup (6 posts)

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Launch Flagships

Three English flagship posts are being translated in parallel with the Chinese originals:

  • 🌐 Network: SSH Hardening (from W2)
  • 🛡️ Monitoring: Prometheus Alerting (from W2)
  • 🏠 Home Assistant: Backup & Restore (from W3)

About This Site

  • Author: 玖 (ops@jiunotes.top)
  • Focus: Field notes from a working ops engineer
  • License: CC BY-NC-SA 4.0
  • Not doing: comments, subscriptions, logins, ads, "what is X" explainers