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

Setting Up Cloudflare Wildcard Subdomains: A Practical Guide

If you need to route traffic for any subdomain (like *.example.com) to the same server, Cloudflar...

Fix Nginx 502 Bad Gateway with Docker Environment Variables

If you see a 502 Bad Gateway from nginx running in Docker, it usually means ngin...

Manually Download and Fix Windows Update Error 0x80070002

You see error 0x80070002 when checking for updates. It usually means Windows Update can't fin...

How to Remove Chrome Status Access Violation Malware

You’re browsing in Chrome and suddenly the page crashes with STATUS_ACCESS_VIOLATION...

Fix Nginx Permission Denied for Static Files

Common Causes

When Nginx returns a 403 Forbidden or 'permission denied' error for...

How to Resolve Git Unrelated Histories Merge Conflict

When you try to merge two branches that have no common commit history, Git refuses with fat...