# https://www.cloudflare.com/ips replace the ips-v4 with ips-v6 if needed
# https://blog.cloudflare.com/cloudflare-now-supporting-more-ports/
for ip in `wget -qO- http://www.cloudflare.com/ips-v4`; do
  iptables -I INPUT -p tcp -m multiport --dports 80,443,8080,8443,2052,2053,2082,2083,2086,2087,2095,2096,8880 -s $ip -j ACCEPT
done