#nginx
All articles tagged #nginx — practical guides from production experience.
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6 posts tagged #nginx
NGINX 502 Bad Gateway Under Load: Root Causes and Fixes
NGINX 502 errors under load are almost never a simple app crash. This guide covers the real root causes — connection backlog overflow, keepalive misconfiguration, ephemeral port exhaustion — with diagnostic commands and config fixes from production incidents.
Nginx Rate Limiting Configuration: Practical Guide With Examples
Configure nginx rate limiting with limit_req_zone and limit_req — with real examples for API protection, login endpoints, and burst handling in production.
Nginx 502 Bad Gateway Fix: Root Causes and Solutions
Fix nginx 502 bad gateway errors — identify the root cause from the error log, fix upstream connection issues, keepalive config, and timeout problems in production.
NGINX Troubleshooting Guide: Complete Production Reference
The complete NGINX troubleshooting reference — 502/504 errors, upstream failures, SSL issues, connection limits, keepalive misconfiguration, and production debugging workflows with real commands.
NGINX Upstream Keepalive Explained: Why Missing It Causes 502 Errors
Missing keepalive in your NGINX upstream block silently kills connections under load. Here's exactly what keepalive does, how TCP connection reuse works, and the production-ready config that stops 502s before they start.
NGINX SSL Hardening: From C Grade to A+ on SSL Labs
A step-by-step walkthrough of the NGINX TLS configuration changes that take you from a mediocre SSL rating to a perfect score — without breaking compatibility.