On Thu, Dec 27, 2012 at 06:50:07PM -0500, Michael Orlitzky wrote > Once you've upgraded, you should be able to add all of your old --state > rules normally, albeit with a warning. The new iptables will translate > them to conntrack rules, and you can `/etc/init.d/iptables save` the result. > > The upgrade just fails in a horrible way.
Here's my revised "Paranoia Plus" ruleset. Any comments? Because I'm behind a NAT-ing ADSL router/modem, many of my rules rarely see hits. However, I do have a backup dialup connection in case of problems, so most of my rules don't specify the network interface. A couple of notes... * My little lan is 192.168.123.248/29 * I have a TV tuner box that comes up in the zero-config space, so I have to allow 169.254.0.0/16 * I "dislike" a certain button following me. # Generated by iptables-save v1.4.16.3 on Thu Dec 27 22:43:12 2012 *filter :INPUT DROP [0:0] :FORWARD DROP [0:0] :OUTPUT DROP [0:0] :DROP_LOG - [0:0] :FECESBOOK - [0:0] :ICMP_IN - [0:0] :PRIVATE - [0:0] :PRIVATE_LOG - [0:0] :TCP_IN - [0:0] :UDP_IN - [0:0] :UNSOLICITED - [0:0] [0:0] -A INPUT -s 192.168.123.248/29 -i eth0 -j ACCEPT [0:0] -A INPUT -s 169.254.0.0/16 -i eth0 -j ACCEPT [0:0] -A INPUT -s 69.63.176.0/20 -j FECESBOOK [0:0] -A INPUT -s 69.220.144.0/20 -j FECESBOOK [0:0] -A INPUT -s 69.63.176.0/20 -j FECESBOOK [0:0] -A INPUT -s 69.171.224.0/19 -j FECESBOOK [0:0] -A INPUT -s 200.58.112.0/20 -j FECESBOOK [0:0] -A INPUT -s 213.155.64.0/19 -j FECESBOOK [0:0] -A INPUT -p tcp -m tcp --sport 53 -j ACCEPT [0:0] -A INPUT -p udp -m udp --sport 53 -j ACCEPT [0:0] -A INPUT -i lo -j ACCEPT [0:0] -A INPUT -f -j LOG --log-prefix "FRAGMENTS:" --log-level 6 [0:0] -A INPUT -f -j DROP [0:0] -A INPUT -p tcp -j TCP_IN [0:0] -A INPUT -p udp -j UDP_IN [0:0] -A INPUT -p icmp -j ICMP_IN [0:0] -A INPUT -j LOG --log-prefix "BAD_PROTOCOL:" --log-level 6 [0:0] -A INPUT -j DROP [0:0] -A OUTPUT -d 192.168.123.248/29 -o eth0 -j ACCEPT [0:0] -A OUTPUT -o lo -j ACCEPT [0:0] -A OUTPUT -p icmp -m icmp --icmp-type 3 -j ACCEPT [0:0] -A OUTPUT -p icmp -m icmp --icmp-type 8 -j ACCEPT [0:0] -A OUTPUT -p icmp -m icmp --icmp-type 30 -j ACCEPT [0:0] -A OUTPUT -p tcp -m tcp --sport 0:1023 -j DROP_LOG [0:0] -A OUTPUT -p udp -m udp --sport 0:1023 -j DROP_LOG [0:0] -A OUTPUT -p tcp -m tcp --sport 6000:6063 -j DROP_LOG [0:0] -A OUTPUT -p udp -m udp --sport 6000:6063 -j DROP_LOG [0:0] -A OUTPUT -j ACCEPT [0:0] -A DROP_LOG -j LOG --log-level 6 [0:0] -A DROP_LOG -j DROP [0:0] -A FECESBOOK -j LOG --log-prefix "FECESBOOK:" --log-level 6 [0:0] -A FECESBOOK -j DROP [0:0] -A ICMP_IN -p icmp -m conntrack --ctstate NEW -j UNSOLICITED [0:0] -A ICMP_IN -p icmp -m icmp --icmp-type 0 -j PRIVATE [0:0] -A ICMP_IN -p icmp -m icmp --icmp-type 3 -j PRIVATE [0:0] -A ICMP_IN -p icmp -m icmp --icmp-type 4 -j PRIVATE [0:0] -A ICMP_IN -p icmp -m icmp --icmp-type 11 -j PRIVATE [0:0] -A ICMP_IN -p icmp -m icmp --icmp-type 12 -j PRIVATE [0:0] -A ICMP_IN -j LOG --log-prefix "IN_BAD_ICMP:" --log-level 6 [0:0] -A ICMP_IN -j DROP [0:0] -A PRIVATE -s 10.0.0.0/8 -j PRIVATE_LOG [0:0] -A PRIVATE -s 127.0.0.0/8 -j PRIVATE_LOG [0:0] -A PRIVATE -s 172.16.0.0/12 -j PRIVATE_LOG [0:0] -A PRIVATE -s 192.168.0.0/16 -j PRIVATE_LOG [0:0] -A PRIVATE -j ACCEPT [0:0] -A PRIVATE_LOG -j LOG --log-prefix "IN_BAD_ADDR:" --log-level 6 [0:0] -A PRIVATE_LOG -j DROP [0:0] -A TCP_IN -p tcp -m tcp --dport 0:1023 -j DROP_LOG [0:0] -A TCP_IN -p tcp -m tcp --dport 6000:6063 -j DROP_LOG [0:0] -A TCP_IN -p tcp -m tcp --sport 53 -j PRIVATE [0:0] -A TCP_IN -p tcp -m tcp --sport 80 -j PRIVATE [0:0] -A TCP_IN -p tcp -m conntrack --ctstate NEW -m tcp -j UNSOLICITED [0:0] -A TCP_IN -p tcp -j PRIVATE [0:0] -A UDP_IN -p udp -m udp --dport 0:1023 -j DROP_LOG [0:0] -A UDP_IN -p udp -m udp --dport 6000:6063 -j DROP_LOG [0:0] -A UDP_IN -p udp -m udp --sport 53 -j PRIVATE [0:0] -A UDP_IN -p udp -m udp --sport 80 -j PRIVATE [0:0] -A UDP_IN -p udp -m conntrack --ctstate NEW -j UNSOLICITED [0:0] -A UDP_IN -p udp -j PRIVATE [0:0] -A UNSOLICITED -j LOG --log-prefix "UNSOLICITED:" --log-level 6 [0:0] -A UNSOLICITED -j DROP COMMIT # Completed on Thu Dec 27 22:43:12 2012 -- Walter Dnes <waltd...@waltdnes.org> I don't run "desktop environments"; I run useful applications
