Darko wrote: snip
But where from the menu i can't find it on my kde
Install the package 'menu', then after any apt update/upgrade, type 'update-menus' while still at the command line and firestarter is one of the many packages that conform to that requirement.
if i try from
/usr/sbin/ then it tells me that I have mut be a root
Of course it does. It will from the menu also. What's the point in having a firewall that any user can configure? Regards, David.