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

Clear Chrome Certificate Cache to Fix NET::ERR_CERT_AUTHORITY_INVALID

When you see NET::ERR_CERT_AUTHORITY_INVALID in Chrome, it usually means the browser...

How to Fix Cloudflare SSL Full Strict Self-Signed Certificate Error

Docker Nginx 502 Bad Gateway: Memory Limit Fix

You're running Nginx in Docker as a reverse proxy, and suddenly you see 502 Bad Gateway error...

Fix VS Code Git Authentication Failed with Two-Factor Auth

When you have two-factor authentication (2FA) enabled on your Git service (GitHub, GitLab, Bitbuc...

Python Virtual Environment Not Activating on Ubuntu: Fixes

You've created a Python virtual environment on Ubuntu, but when you run source venv/bin...