ntp is not working/running on lockbox:

It is not running, since no udp socket is open:
{{{
$ ss -nul | grep 123
}}}

Here are the configured servers:
{{{
$ grep server /etc/ntp.conf

setup a set of servers that we all look at.

server 66.187.233.4 # [clock.redhat.com]
server 192.43.244.18 # [time.nist.gov]
server 128.118.25.5 # [otc1.psu.edu]
server 204.152.184.72 # [clock.isc.org]
server 127.127.1.0 # local clock
}}}

It has an offset to clock.redhat.com:
{{{
$ ntpdate -d 66.187.233.4
1 Sep 18:31:29 ntpdate[20308]: ntpdate 4.2.6p5@1.2349-o Mon Jul 15 09:22:50 UTC 2013 (1)
Looking for host 66.187.233.4 and service ntp
host found : 66.187.233.4
transmit(66.187.233.4)
receive(66.187.233.4)
transmit(66.187.233.4)
receive(66.187.233.4)
transmit(66.187.233.4)
receive(66.187.233.4)
transmit(66.187.233.4)
receive(66.187.233.4)
server 66.187.233.4, port 123
stratum 1, precision -16, leap 00, trust 000
refid [CDMA], delay 0.09451, dispersion 0.00018
transmitted 4, in filter 4
reference time: d7af3a14.3faf5341 Mon, Sep 1 2014 18:31:48.248
originate timestamp: d7af3a1c.9d0129cd Mon, Sep 1 2014 18:31:56.613
transmit timestamp: d7af3a06.05815250 Mon, Sep 1 2014 18:31:34.021
filter delay: 0.09671 0.09509 0.09457 0.09451
0.00000 0.00000 0.00000 0.00000
filter offset: 22.55677 22.55621 22.55586 22.55591
0.000000 0.000000 0.000000 0.000000
delay 0.09451, dispersion 0.00018
offset 22.555910

1 Sep 18:31:34 ntpdate[20308]: step time server 66.187.233.4 offset 22.555910 sec
}}}

But the following servers cannot be reached:
* 192.43.244.18
* 128.118.25.5

But {{{204.152.184.72}}} works again.