# Getting Started with Cloud Firewalls

DigitalOcean Cloud Firewalls are a network-based, stateful firewall service for Droplets provided at no additional cost. Cloud firewalls block all traffic that isn’t expressly permitted by a rule.

[Firewalls Quickstart](https://docs.digitalocean.com/products/networking/firewalls/getting-started/quickstart/index.html.md): Just the essentials to go from zero to working in a few minutes.