[Shorewall-users] ntp and shorewall
Mon, 22 Jul 2002 17:30:10 -0700 (PDT)
On Mon, 22 Jul 2002, John Andersen wrote:
> Does shorewall have a problem with ntp?
> My client machines inside the firewall never seem
> to contact the ntp server, and nothing shows
> up in the shorewall logs. But If i move the client
> to the other side of the firewall it works fine.
> I've configured the thing with a numerical ip so
> its not a dns problem.
As a general principle, broadcast doesn't work through a router. A
firewall running Shorewall is a router. So if you configure your system to
use NTP broadcasts, when you insert a router between the client and the
server it doesn't work.
Here is the /etc/ntp.conf file from the system I'm writing this on:
logconfig syncall +clockall
Tom Eastep \ Shorewall - iptables made easy
AIM: tmeastep \ http://www.shorewall.net
ICQ: #60745924 \ firstname.lastname@example.org