Practical software fixes, setup guides, and tool workflows.

DNS Probe Finished NXDOMAIN: Meaning and Fixes

You're trying to visit a website but Chrome shows "DNS_PROBE_FINISHED_NXDOMAIN". This...

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

Symptom

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

VS Code Terminal Not Opening with SSH: Fixes

You connect to a remote server via SSH in VS Code, but the integrated terminal stays blank or nev...

Nginx Upstream Connection Refused: Diagnosis and Fixes

When Nginx returns a 502 Bad Gateway or logs "upstream connection refused", it means Ngin...

Fix 'port already allocated' for Nginx in Docker Compose

You're starting your Docker Compose setup with Nginx, and you see "port is already alloca...

Debugging Nginx Redirect Loops: Step-by-Step Guide

You try to load a site and the browser keeps spinning or shows 'ERR_TOO_MANY_REDIRECTS'. ...