Mick <michaelkintz...@gmail.com> [15-05-28 07:44]: > On Thursday 28 May 2015 06:11:08 meino.cra...@gmx.de wrote: > > Hi, > > > > With wireshark I found, that firefox accesses sites on startup, from > > which I dont know, for what reason this access is needed or whether > > the NSA, CIA, FBI, BDN, MOSSAD (fill in what organisation you ever > > suspect to do such things) has invaded my PC. > > It may none of the above, but FF and any addons checking what the latest > version is of themselves, as well as the Google search on the default hope > page doing a DNS query or some such. > > > > I want to block such accesses for two reasons: First is ...hmmm... > > to block that accesses...second is to find out what will not work > > than. > > > > I dont want to install and configure a complete full blown firewalled > > SEL-Linux thingy here and I dont want to reboot my Linux box for every > > new site I added. I am looking for a simple solution, which I can use > > without studying the history of TCP/IP and others... ;))) > > > > What can I use for this purpose? > > You could try an application layer filter[1], but I think it won't work > insofar the connections you observed are probably using ports and protocols > same as your day to day browsing activity. Therefore you will likely need to > use iptables to block individual domains or IP addresses and then regularly > add to the list when the servers your browser wants to contact change in that > amorphous and reconfiguring cloud out there. > > You don't have to reboot your box when you change rules, but you'll need to > reload iptables. > > > [1] http://l7-filter.sourceforge.net/HOWTO-kernel > > -- > Regards, > Mick
Hi Mick, thanks for your help ! :) What mechanism is recommended to be used to reinstall/initiate the iptable rules while booting? Any Gentoo-ish? ;) Best regard, Meino
