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...

VSCode Terminal Not Opening on Ubuntu: Fixes That Work

You open the integrated terminal in VSCode on Ubuntu, but nothing happens—no shell, no error, jus...

Fix DNS Probe Finished NXDOMAIN for a Specific Website

If you see the error "DNS_PROBE_FINISHED_NXDOMAIN" in Chrome when trying to visit a speci...

Fix 'nginx cannot read file permission denied' Error

When Nginx returns a 403 Forbidden or logs "permission denied" for a static file, it'...

Docker Build Canceled: How to Get Verbose Logs

If your Docker build fails with a “context canceled” error, it usually means the build was interr...

Git Push Rejected Non Fast Forward: How to Fix