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

Fixing Nginx 502 Bad Gateway in Docker Networks

You have an Nginx container proxying requests to another container (like a PHP-FPM or Node app), ...

Fix Python Permission Denied When Installing Package via Docker

Setup Cloudflare Origin Certificate for Nginx

If you use Cloudflare as a reverse proxy, enabling HTTPS between Cloudflare and your Nginx server...

Windows Update Error 0x800f081f: Troubleshooting Steps

You're running Windows Update and it fails with error 0x800f081f. This usually means the upda...

Fix Windows 11 Setup Stuck at 99%

You're installing Windows 11 and the progress bar hangs at 99% for a long time. This is a kno...

Fix ERR_CONNECTION_RESET Caused by Chrome Extensions

If you see the ERR_CONNECTION_RESET error in Chrome, it often means a network connection was inte...