> Are you running tcpdump on the same machine that is doing the filtering? > You do realize that tcpdump sees the packets as they come from the > interface and before they are passed to the filter rules, right?
I had forgotten this important piece of information. Thank you for pointing this out. The packets still seem to be getting through to the BIND daemon, however, because I can still query the box from the Internet. > Does the count field from "iptables -vnL RH-Firewall-1-INPUT" show > your REJECT rules being hit? Yes, the rule gets hit and it returns an answer to the DNS query anyway. I saw it increment from 10 to 11 when I ran the query: 11 692 REJECT udp -- * * 10.100.1.1 0.0.0.0/0 udp dpt:53 reject-with icmp-port-unreachable _______________________________________________ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
