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

Docker Compose Build: No Cache vs Cache – When to Use Each

If you've run docker compose build and noticed it's using old dependencies or taking...

Fix Chrome 'Connection Refused' on Linux Profiles

You launch Google Chrome on Linux, maybe with a specific profile flag, and instead of your browse...

How to Fix PostgreSQL Connection Refused Error

When you see "connection refused" while trying to connect to PostgreSQL, it usually means the cli...

Windows Security for Ubuntu Installation Checklist

Before You Install Ubuntu

If you're dual-booting Windows and Ubuntu, or replacing Windows...

Fix Windows Security Invalid Configuration Error Code

You open Windows Security and see an error message about an invalid configuration, often accompan...

Fix Chrome Extension Permission Denied Error 0x80070005

When installing or updating a Chrome extension, you may see error code 0x80070005 with a message ...