Workflow manuals for setup steps, repeatable tasks, and software operations.

How to Fix Nginx Upstream Connection Refused on Port 80

When nginx logs show "upstream connection refused" while connecting to port 80, it means ...

How to Fix Python UnicodeDecodeError: 'utf-8' Codec Can't Decode Byte

You're running a Python script and suddenly see:

UnicodeDecodeError: 'utf-8' ...

Fixing Cloudflare 522 Errors with Load Balancer Setup

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

How to Fix Cloudflare 522 Error When Website Won't Load

Cloudflare 522 error means your origin server is not responding within the allowed time. This usu...

Windows 11 Installation Assistant Stuck at 99%: Fixes That Work

You’re upgrading to Windows 11 via the Installation Assistant, and it gets stuck at 99%. The prog...

How to Fix Nginx Redirect Loop in Server Block

You set up a server block in Nginx, but now the browser keeps redirecting—http to https, or www t...