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

Fixing NGINX Upstream Connection Refused SSL Errors

When NGINX logs upstream connection refused for an SSL backend, it usually means the...

Fix Git Push Rejected Non Fast Forward Error

How to Fix Git Clone Timeout on Linux

When you run git clone on a Linux machine and it hangs or fails with a timeout error...

Windows Security App Not Working After Update: Fixes

After a Windows update, the Windows Security app may fail to open, show a blank window, or displa...

Fix Nginx Configuration Test Failure After SSL Setup

You've just added SSL certificates to your Nginx server block, but nginx -t retu...