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

DNS Probe Finished NXDOMAIN: Fix When ipconfig /flushdns Fails

You're browsing normally and suddenly Chrome shows "DNS_PROBE_FINISHED_NXDOMAIN". You...

Fix Windows Update Error 0x80070005 by Taking Ownership

What Causes Error 0x80070005?

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

VS Code Terminal Not Opening with SSH: Fixes

You connect to a remote server via SSH in VS Code, but the integrated terminal stays blank or nev...

How to Fix 'Git Remote Origin Already Exists' Error When Cloning

You run git clone and get fatal: remote origin already exists. This err...

How to Fix Nginx 'Upstream Connection Refused' Error

When Nginx returns a 502 Bad Gateway with upstream connection refused in the error l...

Fix Nginx Configuration Test Failure After SSL Setup

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