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

Fix git index.lock File Exists Error on Windows

If you see fatal: Unable to create 'index.lock': File exists. when running G...

Cloudflare 522 Error: Server Response Time Troubleshooting

You're browsing a site and get a Cloudflare 522 error—'Connection timed out' or '...

Fix ERR_NAME_NOT_RESOLVED in Chrome: Network Troubleshooting Guide

When Chrome displays ERR_NAME_NOT_RESOLVED, it means the browser cannot translat...

Cloudflare Origin Certificate Setup for Apache

If you use Cloudflare's proxy (orange cloud), you can set up an origin certificate to encrypt...

DNS Probe Finished NXDOMAIN: Meaning and Fixes

You're trying to visit a website but Chrome shows "DNS_PROBE_FINISHED_NXDOMAIN". This...

Fix 'Permission Denied' When Running pip install --user