[ntp:questions] Question about ntp log messages and logging interval

Jeff Boyce jboyce at meridianenv.com
Tue Sep 12 17:09:01 UTC 2006


Greetings -

I am using NTP on a fully up to date RHEL3 system (Dell PE2600 hardware).  I 
use a very basic configuration file (see below) and also use the North 
America NTP pool servers.  Since I got ntp running properly (I think) about 
two weeks ago, I notice a lot of ntp information in my log file (see log 
snippet below).

1. I am wondering if this is an indication of a properly (or improperly) 
running ntp system?
2. If this logging is normal, are there any recommendations for how I can 
reduce the amount of logging?
3. How do I find out what the standard polling interval is, and how would I 
reduce the interval if I wanted to?
Thanks.

#/etc/ntp.conf
server 0.us.pool.ntp.org
server 1.us.pool.ntp.org
server 2.us.pool.ntp.org
server  127.127.1.0     # local clock
fudge   127.127.1.0 stratum 10
driftfile /var/lib/ntp/drift

# ntpq -p
     remote           refid      st t when poll reach   delay   offset 
jitter
=====================================================
 LOCAL(0)        LOCAL(0)        10 l   18   64  377    0.000    0.000 
0.015
*dns01.flame.org clock.xmission.  2 u   19   64  377   73.882    8.660 
42.399
+216-136-10-198. ns.nts.umn.edu   3 u   30   64  377  112.790    9.468 
48.783
+sfobug.org      97.226.103.255   2 u   16   64  377  113.669   15.344 
40.253

********* /var/log/messages ***********
Sep 10 04:46:26 bison ntpd[20484]: time reset 0.842745 s
Sep 10 04:46:26 bison ntpd[20484]: synchronisation lost
Sep 10 05:25:02 bison ntpd[20484]: time reset 0.275572 s
Sep 10 05:25:02 bison ntpd[20484]: synchronisation lost
Sep 10 05:52:10 bison ntpd[20484]: time reset 1.007164 s
Sep 10 05:52:10 bison ntpd[20484]: synchronisation lost
Sep 10 06:42:48 bison ntpd[20484]: time reset 0.381250 s
Sep 10 06:42:48 bison ntpd[20484]: synchronisation lost
Sep 10 07:31:07 bison ntpd[20484]: time reset 0.541173 s
Sep 10 07:31:07 bison ntpd[20484]: synchronisation lost
Sep 10 08:18:24 bison ntpd[20484]: time reset 0.633675 s
Sep 10 08:18:24 bison ntpd[20484]: synchronisation lost
Sep 10 09:01:28 bison ntpd[20484]: time reset 0.433766 s
Sep 10 09:01:28 bison ntpd[20484]: synchronisation lost
Sep 10 09:23:06 bison ntpd[20484]: time reset 0.224851 s
Sep 10 09:23:06 bison ntpd[20484]: synchronisation lost
Sep 10 09:43:50 bison ntpd[20484]: time reset 0.452334 s
Sep 10 09:43:50 bison ntpd[20484]: synchronisation lost
Sep 10 10:36:33 bison ntpd[20484]: time reset 0.582234 s
Sep 10 10:36:33 bison ntpd[20484]: synchronisation lost
Sep 10 11:28:58 bison ntpd[20484]: time reset 0.432536 s
Sep 10 11:28:58 bison ntpd[20484]: synchronisation lost
Sep 10 11:48:37 bison ntpd[20484]: time reset 0.591722 s
Sep 10 11:48:37 bison ntpd[20484]: synchronisation lost
Sep 10 12:31:38 bison ntpd[20484]: time reset 0.697608 s
Sep 10 12:31:38 bison ntpd[20484]: synchronisation lost
Sep 10 13:11:33 bison ntpd[20484]: time reset 0.640630 s
Sep 10 13:11:33 bison ntpd[20484]: synchronisation lost
Sep 10 13:56:57 bison ntpd[20484]: time reset 0.967973 s
Sep 10 13:56:57 bison ntpd[20484]: synchronisation lost
Sep 10 14:48:37 bison ntpd[20484]: time reset 0.928340 s
Sep 10 14:48:37 bison ntpd[20484]: synchronisation lost


Jeff Boyce
www.meridianenv.com 




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