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

Fix Nginx Upstream Connection Refused Error

When Nginx returns upstream connection refused in your error logs, it means Nginx tr...

Restore Windows Defender Real-Time Protection After Malware Disables It

If your Windows Defender real-time protection has been turned off and you suspect malware is the ...

Fix DNS Probe Finished NXDOMAIN Error in Windows 10

When you see "DNS_PROBE_FINISHED_NXDOMAIN" in Chrome or other browsers, it means the DNS ...

Fix 'git remote origin already exists' Error in GitLab

Fix Windows Update Error 0x80070002 Due to Network Issues

If you see Windows Update error 0x80070002, it often means the update files are missing or corrup...

How to Fix Git Large File Errors When Not Using LFS

If you've ever tried to push a commit containing a large file (e.g., a binary, a dataset, or ...