Blocking specific network applications with iptables
Posted by: Anonymous
on November 20, 2007 02:10 PM
l7-filter could probably be used to block specific applications since it "identifies packets based on application layer data. It can classify packets as Kazaa, HTTP, Jabber, Citrix, Bittorrent, FTP, Gnucleus, eDonkey2000, etc., regardless of port." See http://l7-filter.sourceforge.net/ for more information. I haven't tried it in a long time, but it worked very well the last time I used it.