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

Chrome Memory High After Update: How to Fix

After a Chrome update, you might notice the browser using more memory than usual—slowing down you...

Firefox Secure Connection Failed Only on WiFi: Fixes

If Firefox shows a "Secure Connection Failed" error only when you're on WiFi—but the ...

How to Fix Nginx 502 Bad Gateway in Docker Compose

If you're running an application with Docker Compose and Nginx as a reverse proxy, a 502 Bad ...

Fix 'package.json Not Found' After Cloning a Repository

Symptom

You clone a repository from GitHub (or another remote), change into the directory...

Fix Docker Nginx 502 Bad Gateway with MySQL

You have a Dockerized web app behind Nginx, and you're seeing a 502 Bad Gateway error. The ap...

Fix Cloudflare DNS Propagation Taking Too Long

You updated DNS records in Cloudflare but changes still aren't live hours later. This is frus...