About F19 Firewall

     Hi, I upgraded to F19 recently. And I happened to look at the output of iptables(8) today.    $ iptables -nL It's baffling! It's crazy 4 pages long listing!! Why are there so many chains? Most are empty. Those which have rules, jump from one chain to another and that jumps to yet another. Multicast DNS is allowed in the internal network(chain IN_internal_allow). I guess  IN_internal_allow  is meant for some closed group internal network, not sure.     ACCEPT     udp  --  0.0.0.0/0            224.0.0.251          udp dpt:5353 ctstate NEW Who uses it? Then I looked at the firewall configuration GUI tool. That's even more baffling. On the left hand side, it lists zones: home, internal, public, work etc. without any explanation whatsoever what each one is suppose to do. It also has a default zone which is 'public'. I guess that must be the running firewall configuration. So even if I'm at work or at home, I'm using firewall configuration that is meant for public network, am I? Besides, who is going to switch between these zones everyday from home to work to home again? I think for individual users, which is majority of the users, this is a stupid firewall. It doesn't have to be so complicated that even if one tries to understand it, he/she can not. :( --- Regards    -Prasad http://feedmug.com