> There is a nice feature of Zonealarm for Windows that will check > outgoing packets, and if that program sending is not on their list, ask > if you want to allow that program to access the web. Maybe you can have a look at : http://fireflier.sourceforge.net/ I've never tested it but from screenshots it seems able to do application filtering : http://fireflier.sourceforge.net/qtclient_userspace.html By the way you can have network range application filtering with nufw : http://www.nufw.org > > In addition, it will warn if a program is asking for server rights > although and ask for approval to grant that, although I don't understand > what they mean by "server rights". This is the right to open a socket in listening mode ? > > Most Iptables scripts I've seen do very little OUTPUT filtering which > means a malicious program, if it got access somehow, could have free > range to send packets out. Zombie or spyware perhaps. > > The ability to block this by only allowing "approved" programs to access > the Internet would be a nice addition to Iptables. > > I heard this could be done in userspace with the QUEUE target in > iptables although I haven't been able to dig up much information about > QUEUE and it's use. > > Does anyone have some ideas on how to implement this? > > If I had some ideas I'd be willing to take a first cut at it. I know > just enough Iptables to be dangerous <g>. > > Larry > > -- > Larry Alkoff N2LA - Austin TX > Using Thunderbird on Slackware Linux > >