Redhat NTPD Clock

[Bob McClure Jr]

On Thu, May 25, 2006 at 09:26:57PM -0400, John Wirt wrote:
> Hmm..can you  tell me how to set the security level?
> 
> Thank you, Rick.
> 
> John Wirt

We prefer bottom posting here.  See

 http://en.wikipedia.org/wiki/Top-posting

Try "firewall-config".

> Rick Stevens wrote:
> 
> >On Thu, 2006-05-25 at 00:58 -0400, John Wirt wrote:
> > 
> >
> >>Thanks you several of you, I have RedHat booting to completion just fine 
> >>except for one problem.
> >>
> >>Near the end of the boot sequence, RedHat apparently tries to connect to 
> >>some time standard at 66.187.224.4. The sequence is:
> >>
> >>
> >> ntpd: Opening firewall for input from 66.187.224.4 port 123
> >> ntpd: Opening firewall for input from clock.redhat.com port 123
> >> iptables v 1.2.8: host/network clock.redhat.com not found [FAILED]
> >>
> >>    use iptables -h for assistance.
> >>
> >>However, iptables -h doesn't provide any help.
> >>
> >>What is the problem? How can I fix it?
> >>   
> >>
> >
> >You must have the firewall open ports for TCP and UDP port 53 (DNS).
> >What's probably happening is that the system is trying to resolve
> >clock.redhat.com (66.187.224.4 and 66.187.233.4) and can't because the
> >firewall is blocking DNS issues.  This happens if you used the "maximum"
> >setting on system-config-securitylevel as that blocks EVERYTHING
> >(including DNS).  Use the "medium" security setting.
> >
> >----------------------------------------------------------------------
> >- Rick Stevens, Senior Systems Engineer     rstevens at vitalstream.com -
> >- VitalStream, Inc.                       http://www.vitalstream.com -
> >-                                                                    -
> >-        Change is inevitable, except from a vending machine.        -
> >----------------------------------------------------------------------

Cheers,
-- 
Bob McClure, Jr.             Bobcat Open Systems, Inc.
bob at bobcatos.com             http://www.bobcatos.com
Jesus wasn't (and isn't) politically correct.
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