LinuxBSDos.com takes a look at 3 graphical clients for managing the Uncomplicated FireWall
ufw, the Uncomplicated FireWall, is Ubuntu’s user-friendly, command line frontend to IPTables, the command line utility for managing Netfilter, the firewall application built into the Linux kernel. It is installed not just on Ubuntu, but also on all Ubuntu-based distributions. As simple to use as ufw is, a graphical interface is even better, especially for new users. This article, presents the three graphical interfaces for and managing ufw that I am aware of. If you know another that is not listed here, tell us about it. Note that this is not a tutorial on how to configure them, just a listing.