[CentOS] NTP server problem behind firewall

Leonard den Ottolander
Mon, 03 Sep 2012 11:15:41 -0000

On Sun, 2012-09-02 at 07:46 +0000, Artifex Maximus
wrote:
> Any idea what is wrong?

The iptables rules you specify only allow clients from your local
network access to your "proxy" ntp server. However, you do not specify
any rules for eth1 to allow that ntp server to synchronise with the
remote servers it is using. So unless you are using a local time source
that might be your problem.

Btw, when specifying rules for the external ntp servers you might want
to specify IPs as well to restrict access.

Regards,
Leonard.

--
mount -t life -o ro /dev/dna /genetic/research