On Sun, Aug 19, 2018 at 08:31:42PM +0300, Mimiko wrote: > Hello. > > Maybe this was answered. Is there a Deep Packet Inspection to use in Debian 9 for a firewall setup? Opensource and maybe in repository. > libndpi and ntopng are packaged, but no firewall built on that is packaged (that I know of). zorp is a proxying firewall with many look-inside features, but is not arbitrarily deep. Why do you need DPI rather than connection tracking? -dsr-