Workflow manuals for setup steps, repeatable tasks, and software operations.

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 DNS Probe Finished NXDOMAIN with VPN Issues

When you see 'DNS probe finished NXDOMAIN' in your browser while a VPN is active, it mean...

Nginx Upstream Connection Refused: Fixing localhost Errors

You set up an nginx reverse proxy to forward requests to a backend service on localhost, but ngin...

Fix Git SSL Certificate Problem: Unable to Get Local Issuer

You run git clone https://example.com/repo.git and get:

fatal: unable to acc...

Fix ERR_CERT_AUTHORITY_INVALID on Localhost

When testing a local web app, you may see ERR_CERT_AUTHORITY_INVALID in Chrome or si...

How to Fix Node Version Mismatch in a Project

You cloned a project, ran npm install, and got errors about engine incompatibility. ...