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

Task Scheduler 502 Bad Gateway: Troubleshooting Checklist

If you see a 502 Bad Gateway error when a scheduled task runs, it usually means the task tried to...

Fix Nginx Config Test Not Working After Editing nginx.conf

You've edited nginx.conf, run nginx -t to test, and it fails or produces no output. ...

Fix Gradle Build: Could Not Find or Load Main Class

When a Gradle build fails with Could not find or load main class, it usually means t...

Cloudflare DNS Troubleshooting: Step-by-Step Guide

If your domain isn't resolving correctly after changing DNS records at Cloudflare, you're not alo...

Fix Windows Terminal Permission Denied File Locked Error

Fix 'Permission Denied' When Windows Searches External Drive

When you search an external drive in Windows and see 'permission denied,' the issue usually comes...