Knowledge base for software setup, errors, and daily tool work.

Fix ERR_NAME_NOT_RESOLVED in Chrome: Network Troubleshooting Guide

When Chrome displays ERR_NAME_NOT_RESOLVED, it means the browser cannot translat...

Fix npm install Permission Denied on Shared Hosting

Fix Git Clone Connection Timed Out Due to Firewall

You run git clone and after a long pause see connection timed out. This...

Fixing Nginx Upstream Connection Refused on Port 443

You see "upstream connection refused" in your Nginx error log when proxying requests to p...

How to Fix Nginx Redirect Loop 302 Errors

You're seeing a 302 redirect loop in Nginx — the browser keeps bouncing between URLs until it...

How to Set Python Requests Timeout for the Entire Request

When you use the Python requests library, a request can hang indefinitely if the ser...