if platform_family?("rhel", "debian", "fedora", "amazon", "suse")
  package value_for_platform_family(
    [ "centos", "oracle"] => [ "iptables", "iptables-ipv6" ],
    "default" => [ "iptables" ]
  )
  # IPv4
  execute "iptables -A INPUT -i eth0 -p tcp -m tcp "\
          "--dport 80 -m state --state NEW -m comment "\
          '--comment "http on 80" -j ACCEPT'
  execute "iptables -N derby-cognos-web"
  execute "iptables -A INPUT -j derby-cognos-web"
  execute "iptables -A derby-cognos-web -p tcp -m tcp --dport 80 "\
          '-m comment --comment "derby-cognos-web" -j ACCEPT'
  # IPv6
  execute "ip6tables -A INPUT -i eth0 -p tcp -m tcp "\
          "--dport 80 -m state --state NEW -m comment "\
          '--comment "http v6 on 80" -j ACCEPT'
  execute "ip6tables -N derby-cognos-web-v6"
  execute "ip6tables -A INPUT -j derby-cognos-web-v6"
  execute "ip6tables -A derby-cognos-web-v6 -p tcp -m tcp --dport 80 "\
          '-m comment --comment "derby-cognos-web-v6" -j ACCEPT'
end