Iptables scratchpad

dynamically create iptables commands which allow gentoo emerge sync and fetch

on firewall to forward for gentoo servers

nslookup rsync.gentoo.org | grep -v "#" | grep Address |awk '{ printf "iptables -I FORWARD -p tcp -d " $2 " --dport 873 -j ACCEPT\n"}'
nslookup distfiles.gentoo.org | grep -v "#" | grep Address |awk '{ printf "iptables -I FORWARD -p tcp -d " $2 " --dport 80 -j ACCEPT\n"}'

on firewalls, to update / sync the firewalls themselves

nslookup rsync.gentoo.org | grep -v "#" | grep Address |awk '{ printf "iptables -I OUTPUT -p tcp -d " $2 " --dport 873 -j ACCEPT\n"}'
nslookup distfiles.gentoo.org | grep -v "#" | grep Address |awk '{ printf "iptables -I OUTPUT -p tcp -d " $2 " --dport 80 -j ACCEPT\n"}'

run flush, run iptables script and save...

on fedora,

# iptables -F; /root/iptables.scr; iptables-save > /etc/sysconfig/iptables;

on gentoo...

# iptables -f; /usr/local/bin/iptables.scr; /etc/init.d/iptables save