NHNweke Henryinhenrycloud.hashnode.dev·Aug 4 · 7 min readI'd Never Built a VPN Before — Here's How I Got a Real WireGuard Tunnel Working in an AfternoonIf you've ever been handed a task like "go figure out a VPN for us" with zero networking background, this post is the guide I wish someone had handed me. No prior VPN knowledge assumed. By the end, yo00
NHNweke Henryinhenrycloud.hashnode.dev·Jul 24 · 10 min readThe Third Pillar — Distributed Traces Complete My Observability Stack (Week 6)Six weeks ago my boss sent a message on a Tuesday night. "Can you help with observability customisation?" I had never touched Prometheus. Never run Loki. Never heard of Tempo. Today the stack is compl00
NHNweke Henryinhenrycloud.hashnode.dev·Jul 14 · 8 min read My Alert Fired at 4:40am. Three Places Were Notified Before I Woke Up. (Week 5)Here is what happened while I was asleep. CPU hit 99.85% on my node at 4:40am. My terminal printed the alert. Slack sent a message to #observability-critical. My Gmail received an email. Five minutes 00
NHNweke Henryinhenrycloud.hashnode.dev·Jul 1 · 7 min readI Found a Payment Failure Hidden in 600 Log Lines in 4 Seconds. Here's How. (Week 4)Here's a scenario every engineer has lived through. Your Prometheus alert fires at 3am. Error rate spiked to 17%. You stare at the metric graph. The line goes up, stays up, comes down. You know someth00
NHNweke Henryinhenrycloud.hashnode.dev·Apr 28 · 4 min readHow I Built a Real-Time DDoS Detection Engine from ScratchIntroduction When your web application is under attack, every second counts. In this post I'll walk you through how I built a real-time anomaly detection engine that watches HTTP traffic, learns what 00