[TriLUG] RHEL ntp problem

[Dwain Sims]

Heath:

At the risk of making myself look like a complete idiot, I had a similar
problem recently.  I was scratching my head as to why NTP was not working
when I discovered that nothing networking-wise was operating (could not even
ping the router).  Once I attacked the real problem (wrong driver) NTP was
quite happy.  I know there is
little chance that this is your issue, but it was interesting that this was
the first thing that I saw fail after install.

Dwain



--------- Forwarded message ----------
From: Heath Roberts <htroberts at gmail.com>
To: Triangle Linux Users Group General Discussion <trilug at trilug.org>
Date: Tue, 28 Jun 2011 12:40:35 -0400
Subject: [TriLUG] RHEL ntp problem
I have a problem on a redhat server. NTP appears not to be working. ntpq -p
takes ~15s to timeout and makes it appear that ntpd is only trying to get
time from localhost and failing:

[root@<hostname> init.d]# ntpq -p
localhost.localdomain: timed out, nothing received
***Request timed out


ntpdate also fails, whether run from command line or the ntpd startup
script:

[root@<hostname> init.d]# /etc/init.d/ntpd reload
Shutting down ntpd:                                        [  OK  ]
ntpd
: Synchronizing with time server:                      [FAILED]
Starting ntpd:                                             [  OK  ]
[root@<hostname> init.d]# ntpdate -d            <----------- this is where
it takes ~15s to timeout
28 Jun 12:28:17 ntpdate[23039]: ntpdate 4.2.2p1 at 1.1570-o Thu Nov 26 11:34:35
UTC 2009 (1)
28 Jun 12:28:17 ntpdate[23039]: no servers can be used, exiting


I have another machine on similar (theoretically identical) hardware that
was built from the same repository at the same time that works. I've copied
its ntp.conf to the problem machine, with no change.

Any ideas?



Other information that seems potentially relevant (sorry, I have to
obfuscate hostnames and IP addresses):