On Sunday 2008-04-27 00:07, Josh Cepek wrote: > Yakov Lerner wrote: >> >> I need to setup iptables on system A to drop packets from all IPs >> except packets coming from system B. System B has dynamic IP >> (dynip.sh). B's DNS name is known but B's IP is not fixed. What >> are my options to setup iptables on A ? > > iptables only deals with IP addresses, although it will convert a > DNS name in the command to an IP (or series of IP's if the lookup > returns multiple A records.) iptables will error out if it resolves to more than one and the specific option (= most) only takes one. -- To unsubscribe from this list: send the line "unsubscribe netfilter" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html