We are back as promised with another extension for Plesk. This time, it is a GUI to manage the APF/CSF firewall from inside Plesk, the Firewall Interface Extension. We know that Plesk has its own Firewall module, but something like APF/CSF will definitely make your life easier when it comes to firewall management. Every Install of our Plugin will load a custom ruleset to your firewall that you can manage from inside your Plesk Panel.