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Raspberry Pi Hardening Basics
Secure a Raspberry Pi quickly
This guide covers hardening a Raspberry Pi: change default credentials, update packages, disable password SSH, use keys, enable firewall, and limit exposed services.
- raspberry pi
- hardening
- ssh keys
- ufw
- security
Change defaults
Set a new user/password; disable the default pi account if unused.
Secure SSH
Enable key-based SSH, disable password login, and change default port only as defense-in-depth.
Update and firewall
Apply updates regularly and enable ufw/firewall rules for required ports only.
Limit services
Remove unused packages and avoid exposing the Pi directly to the internet.