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

Cloudflare Wildcard Subdomain CNAME Setup Guide

If you need to route all subdomains (e.g., *.example.com) to the same target, a wildcard CNAME re...

Fix DNS Probe Finished NXDOMAIN Not Working on WiFi

If you see "DNS_PROBE_FINISHED_NXDOMAIN" in Chrome while connected to WiFi, your browser ...

Fix Edge Sync Stuck on Sign-In Loop

You open Microsoft Edge, try to sign in to sync your data, and it keeps looping back to the sign-...

Fix VS Code Source Control Not Detecting Changes on Ubuntu

If you're using VS Code on Ubuntu and the Source Control panel shows no changes even after ed...

Fix Python Permission Denied When Running pip install -r requirements.txt

How to Fix Docker Pull Unauthorized Access Denied

When you run docker pull and get an "unauthorized: access denied" error, Doc...