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

How to Use Chrome Task Manager to Find Memory Hogs

If your computer starts slowing down, Chrome's built-in Task Manager can help you find which ...

ERR_NAME_NOT_RESOLVED on Chrome for Mac: How to Fix

If you see ERR_NAME_NOT_RESOLVED in Chrome on your Mac, the browser can't transl...

Fix Nginx 502 Bad Gateway Docker Permission Denied

When running Nginx as a reverse proxy in a Docker environment, a 502 Bad Gateway error often poin...

Fix 'package.json Not Found' After Cloning a Repository

Symptom

You clone a repository from GitHub (or another remote), change into the directory...

How to Fix Nginx Upstream Connection Refused on Port 80

When nginx logs show "upstream connection refused" while connecting to port 80, it means ...

Fix Docker Network Missing After Reboot

After a system reboot, you may find that a Docker network you created is no longer listed when yo...