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...

Fix Nginx Upstream Connection Refused in Docker

You have Nginx running, either on the host or in a container, proxying to another Docker containe...

Fix 'Windows Cannot Access Shared Folder' Samba Error

You try to open a shared folder from a Linux Samba server on a Windows machine and get: 'Wind...

Fixing Python Memory Errors When Processing Large Files on 64-bit

If you're hitting a MemoryError in Python while reading or processing a large fi...

Python Memory Error When Processing Large Text File: Fixes