Appears the iptables update 1.4.7-14 which came with CentOS6 r6 is the most
likely culprit.
The solution for now is:
delete ',dst' from the iptables INPUT chain
delete 'src,' from the iptables OUTPUT chain.
On Mon, Dec 8, 2014 at 5:39 PM, Rob Townley <rob.townley@xxxxxxxxx> wrote:
> i created an ipset and added 8.8.8.8 to it and used the same iptables
> working all summer long but
> i can still ping 8.8.8.8 and do nslookup queries against it. ipset or
> iptables is broken.
> Anybody else rebooted since ipset-6.11-3.el6.i686 was installed and
> actually tested that IP addresses that are supposed to be blacklisted are
> actually blocked?
>
>
> Filed CentOS bug report 7977 <http://bugs.centos.org/view.php?id=7977>
> this morning. ipset was working great most of the year until ipset 6.11.-3
> CentOS bug 7977 <http://bugs.centos.org/view.php?id=7977>
>
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