Checklists for software errors, setup, and tool workflows.

Fix DNS Probe Finished NXDOMAIN on Custom DNS Server

If you see “DNS PROBE FINISHED NXDOMAIN” in Chrome or another browser while using a custom DNS se...

Docker Desktop Engine Stopped: Fix Firewall Block

If Docker Desktop shows “Engine Stopped” and you suspect a firewall block, here’s how to diagnose...

Fix git index.lock File Exists Error on Windows

If you see fatal: Unable to create 'index.lock': File exists. when running G...

Fix Ethernet Connected but No Internet on Windows 11

You plug in an Ethernet cable, Windows 11 shows you're connected, but websites won't load...

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

Symptom

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

DNS Probe Finished NXDOMAIN: Troubleshooting Checklist

Seeing "DNS_PROBE_FINISHED_NXDOMAIN" in Chrome means the browser couldn't find the IP...