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Guides from the NOC

Written from running the hardware — what breaks, why, and the command that fixes it.

2 posts matching “502-error” · Clear

All 2 Most read Troubleshooting 1 VPS 1
Troubleshooting 502 Bad Gateway Error: Causes and How to Fix It

Seeing a 502 Bad Gateway error on your site? Learn what's really failing behind the scenes - PHP-FPM, LiteSpeed, Cloudflare - and fix it step by step.

16 July 2026 · 6 min · 35 views VPS Nginx Reverse Proxy on a VPS: Setup Guide and Fixing 502/504

Set up Nginx as a reverse proxy on your VPS, secure it with free Let's Encrypt SSL, and fix 502 Bad Gateway, 504 Timeout, and WebSocket disconnect errors.

12 July 2026 · 6 min · 12 views