Disabling and enabling the firewall
The firewall is enabled by default. Disabling the firewall can be useful or even necessary in many cases, e.g. in a test environment. This step shows how to disable the firewall. Note that without a firewall, incoming and outgoing connections will no longer be checked. Never disable the firewall permanently.
Proceed as follows:
- 1. Stop the corresponding service.
sudo systemctl stop nftables- 2. You must disable the service to prevent the firewall from starting automatically when the system is started.
sudo systemctl disable nftables- 3. You can check the status of the service to make sure that nftables is stopped and disabled.
sudo systemctl status nftables- 4. The status indicates that the service has stopped.
- These steps disable the firewall, and firewall rules are no longer applied. If the firewall is to be re-enabled, the service must be restarted and re-enabled:
sudo systemctl start nftables
sudo systemctl enable nftables