Le Jeudi 30 Ao�t 2001 09:58, vous avez �crit :
> Hello again,
>
> under Window$ the Norton Personal Firewall manages the web account for
> every application itself. Under Linux every programm can access to the
> internet through port 80 or 21 which I have allowed on the Firewall! How
> can I manage this securtiy hole? Do I need an application-level-firewall or
> is there another way to do that?
In first, if you want control the application used by our user, a firewall
isn't the good way for do this. You need to install your solution on each
computer for verify that the good application is use (like i suppose is done
by Norton Personal Firewall). SNF require only one computer and one
installation for control the "IP traffic" beetween our network in this
internet (or another network), many browsers can fake her identity and if you
don't have peace of software installed on the computer, you will not detect
which application in use (And in my point of view it's really easy to fake
this kind of protection) so a application-level-firewall isn't a good
solution for your solution. I just want to see you that our request isn't a
security hole, but need another piece of software than SNF.
