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

Node.js --max-old-space-size Setup Guide for Memory Issues

If your Node.js process crashes with a JavaScript heap out of memory error, you likely need to ad...

How to Fix Nginx 'Upstream Connection Refused' Error

When Nginx returns a 502 Bad Gateway with upstream connection refused in the error l...

Fix Nginx Configuration Test Failure from Rewrite Rules

You run nginx -t and get an error. The log points to a rewrite rule. This is common ...

Fix Python Permission Denied When Installing Package via Docker

Fix Windows Update Error 0x800f081f Without Resetting

You're trying to install a Windows update, but it fails with error code 0x800f081f and the me...

Fixing Nginx 502 Bad Gateway with Docker and Load Balancers

If you're running Nginx as a reverse proxy or load balancer in a Docker setup, a 502 Bad Gate...