Translations:Firewalls/11/en
From Manjaro
This indicates that it will block all incoming traffic and allow all outgoing traffic. This is a good starting point for most desktop systems. However, often we will want to allow some incoming traffic. This can be done with the command ufw allow. For example, if we want to allow incoming ssh traffic so we can connect to the machine from other machines on the network we could use the command:
sudo ufw allow ssh