gufw is the GUI version of
Uncomplicated Firewall. What is the purpose of the
unlock command button of
gufw? This command button disappears once it is clicked.
My configuration is Ubuntu 12.04 with the version of
gufw the latest available to Ubuntu via the
apt-get install gufw installation method. (I am not able to access the actual version number since I am using it via a remote desktop and the menu bar seems unresponsive.)