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

Cloudflare DNS Not Propagating After SSL Certificate Change

You changed an SSL certificate in Cloudflare, but DNS changes aren't showing up. This is a co...

Docker Prune Not Freeing Enough Space: Practical Fixes

You run docker system prune -a expecting a big space recovery, but the freed space i...

Fix Nginx 403 Forbidden: Permission Denied Errors

You're trying to access a site served by nginx, but you get a 403 Forbidden ...

Docker Network Not Found After Container Restart: Fixes

You restart a Docker container and get an error like network <name> not found....

Fix Chrome Memory Spikes When Watching Videos

You're watching a video in Chrome, and suddenly the system slows down, fans spin up, or tabs ...

Fix 'git remote origin already exists' Error in GitLab