Firewall

Is it already on?

CachyOS comes with UFW enabled. UFW is short for Uncomplicated Firewall. It controls network connections to and from your computer.

Its default rules block unwanted incoming connections and allow outgoing connections. Browsing and downloads work normally.

Check if it’s on

Open a terminal and run:

sudo ufw status

Active means UFW is on. Inactive means it’s off.

Do I need to change anything?

You can leave the default settings as they are for everyday use.

File sharing or hosting a game may need an extra rule to let other devices connect. Follow the app’s instructions and allow only what it needs.

For enabling UFW or changing its rules, follow CachyOS’s firewall guide (opens in a new tab).