My node suddenly went offline, and my first thought was that the IP address had been blocked. However, there are different types of blocks, and each requires a different approach. Haphazard actions can waste a lot of time, so this article clarifies the troubleshooting and recovery process. Step One: Confirm if it’s Truly Blocked An unreachable node isn’t always due to an IP block. First, rule out other possibilities: ...
Running quant strategies and proxy nodes without monitoring is extremely risky. Out-of-memory crashes at 3 AM, disks filling up, strategies crashing—without alerts, you might not notice for hours. This guide builds a complete monitoring stack from scratch: Node Exporter collects metrics on each monitored machine, Prometheus aggregates and stores them, Grafana visualizes the data, and Telegram delivers alerts. Architecture Monitored VPS (N machines) Central Monitoring VPS (1 machine) ┌──────────────┐ ┌─────────────────────┐ │ Node Exporter│ ──9100──→ │ Prometheus │ │ Node Exporter│ ──9100──→ │ (collect & store) │ │ Node Exporter│ ──9100──→ │ Grafana │ └──────────────┘ │ (visualize) │ │ Alertmanager │ │ (alerts) │ └─────────────────────┘ The approach: dedicate a small VPS (1 core, 1 GB RAM is plenty) as the monitoring hub; install Node Exporter on all other machines to expose metrics. ...
Using OpenClaw for automation—the real headache isn’t configuration, it’s when things mysteriously stop working mid-run. This post covers the failures I’ve hit and their fixes. Gateway Issues Gateway Service Won’t Start Symptoms: Telegram messages go unanswered, AI assistant doesn’t reply. Check: openclaw gateway status Common Causes & Solutions: Cause Solution Process crashed openclaw gateway restart Bot Token expired Get a fresh token from BotFather, update config Port conflict Use lsof -i :port to find what’s using it, kill it Windows won’t auto-start on boot Add to Task Scheduler for startup Windows Caveat: On Windows, Gateway doesn’t auto-start with the system. After each reboot, you need to manually launch it: ...
I’ve been using Claude Code—Anthropic’s CLI tool—to manage my fleet of servers since last year, and it’s genuinely changed how I work with infrastructure. This is what AI should be doing: not chatting, but actually getting things done. My setup 9 overseas VPS instances (AWS / DMIT / Tencent Cloud), distributed across the US, Hong Kong, Japan, and Singapore, running: Proxy nodes (Xray + Hysteria2) Quantitative trading strategies Monitoring stack (Prometheus + Grafana) Various automation scripts I used to SSH into each machine manually. Now I just tell Claude Code “update the Xray config on the Japan machine,” and it handles the SSH connection, modifies the config, restarts the service, and verifies it’s working. ...