============
Firewall UFW
============

UFW : uncomplicated Firewall.

* Get status

   .. code-block:: bash

      sudo ufw status verbose

* Enable or disable Firewall

   .. code-block:: bash

      sudo ufw Enable
      sudo ufw disable

* Open port 502 for TCP packets

   .. code-block:: bash

      sudo ufw allow 502/tcp

* Default port for SSH

   .. code-block:: bash

      sudo allow ssh
      sudo deny ssh

* Open port 3389 to a subnet

   .. code-block:: bash

      sudo ufw allow from 153.109.5.0/24 to any port 3389

* View the rules with their number

   .. code-block:: bash

      sudo ufw status numbered

* Remove a rule with its number

   .. code-block:: bash

      sudo ufw delete <rule number>

* Open a port range to TCP traffic

   .. code-block:: bash

      sudo ufw allow 58000:60999/tcp

   .. note::

      With port range, the protocol part (tcp, udp, ...) is mandatory.

:tag:`Linux`
:tag:`Firewall`