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

How to Validate Nginx Configuration Before Reload

Reloading nginx with a broken configuration can take your site down. The safe way is to test the ...

Fix 'Permission Denied' in VS Code Terminal for Node.js

You're working in VS Code, run npm install or node app.js, and get ...

How to Fix Cloudflare 522 Error (Firewall Blocking)

If you see a Cloudflare 522 error, the connection between Cloudflare and your origin server timed...

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...

How to Enable Windows Defender Real-Time Protection via Command Line

If you need to turn on Windows Defender real-time protection but can't access the Settings ap...

Fix Windows Update Error 0x80070005 by Taking Ownership

What Causes Error 0x80070005?

This error usually means Windows Update doesn't have pe...