Checklists for software errors, setup, and tool workflows.

Jupyter Notebook Token Not Working After Update: Fixes

After updating Jupyter Notebook or JupyterLab, you may find that the token-based authentication n...

Fix CMD Service Unavailable Due to Group Policy

Situation

You open Command Prompt and see an error like "Command Prompt has been disabled...

Fix 'chrome command not found' in Bash on Linux

If you type chrome in your bash terminal and see command not found, it ...

Fixing SSH Connection Refused for Linux Server via PuTTY

When you try to connect to a Linux server with PuTTY and get "connection refused," it usually mea...

How to Fix Git Permission Denied (publickey) Error

When you try to clone or push to a remote Git repository over SSH and see Permission denied...