iptables is supposed to write a rule for each of a hostname's IP addresses. "iptables -A INPUT --source www.google.com" gives me six rules for the six IP addresses. Adding "--source www.google.com" bumps that up to thirty-six rules.
I'm uncertain of the issue with duplicate addresses for localhost. I'll ask upstream if iptables should filter out duplicates. -- To UNSUBSCRIBE, email to debian-bugs-rc-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org