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

Fixing Certbot Certificate Renewal Configuration Issues

You set up Certbot to auto-renew your Let's Encrypt certificates, but renewal fails silently or w...

How to Fix Cloudflare DNS Not Resolving on Mac

If you've set Cloudflare DNS (1.1.1.1) on your Mac but websites still fail to load or resolve slo...

Fix Outlook Email Sync Failed on Ubuntu

Outlook email sync fails on Ubuntu: what to check

If Outlook (via web browser, Evolution,...

Fix PowerShell 502 Bad Gateway with Curl

If you're seeing a 502 Bad Gateway error when running curl commands in PowerShell, it usually mea...

Fix Windows Search Token Expired Registry Error

If you see a "token expired" error when using Windows Search, it usually means the search index h...

How to Fix Chrome Rate Limit Error When Signing In

When signing into a website in Chrome, you may see an error like “Rate limit exceeded” or “Too ma...