[ntp:questions] Problem with time synchronisaton

tony.carter at dpi.nsw.gov.au tony.carter at dpi.nsw.gov.au
Fri Apr 11 06:21:18 UTC 2008


Greetings,

I have ntpd installed (ntpq 4.2.2p1 at 1.1570-o Mon Jun  4 15:13:06 UTC 2007 
(1) and running but the time on the ntp host does not appear to be 
synching with the nominated external time references.  Any assistance much 
appreciated.

Details as follows:

[root at maitproddns etc]# ntpq -p
     remote           refid      st t when poll reach   delay   offset 
jitter
==============================================================================
 wireless.org.au .INIT.          16 u    -  256    0    0.000    0.000 
0.000
 pond.thecave.ws .INIT.          16 u    -  256    0    0.000    0.000 
0.000
 cust6381.nsw01. .INIT.          16 u    -  256    0    0.000    0.000 
0.000
 core.narx.net   .INIT.          16 u    -  256    0    0.000    0.000 
0.000
*LOCAL(0)        .LOCL.          10 l    3   64  377    0.000    0.000 
0.001

The logs don't seem to indicate a problem:

Apr 11 15:53:05 maitproddns ntpd[11595]: ntpd 4.2.2p1 at 1.1570-o Mon Jun  4 
15:13:02 UTC 2007 (1)
Apr 11 15:53:05 maitproddns ntpd[11596]: precision = 1.000 usec
Apr 11 15:53:05 maitproddns ntpd[11596]: Listening on interface wildcard, 
0.0.0.0#123 Disabled
Apr 11 15:53:05 maitproddns ntpd[11596]: Listening on interface wildcard, 
::#123 Disabled
Apr 11 15:53:05 maitproddns ntpd[11596]: Listening on interface lo, 
::1#123 Enabled
Apr 11 15:53:05 maitproddns ntpd[11596]: Listening on interface eth0, 
fe80::250:56ff:fe8d:45f3#123 Enab
led
Apr 11 15:53:05 maitproddns ntpd[11596]: Listening on interface lo, 
127.0.0.1#123 Enabled
Apr 11 15:53:05 maitproddns ntpd[11596]: Listening on interface eth0, 
203.11.159.13#123 Enabled
Apr 11 15:53:05 maitproddns ntpd[11596]: kernel time sync status 0040
Apr 11 15:53:08 maitproddns ntpd[11596]: frequency initialized 0.000 PPM 
from /var/lib/ntp/drift
Apr 11 15:56:25 maitproddns ntpd[11596]: synchronized to LOCAL(0), stratum 
10
Apr 11 15:56:25 maitproddns ntpd[11596]: kernel time sync enabled 0001

My ntp.conf file is out of thebox with the exception of the external time 
servers

ntp.conf
---------------------------------------------------------
[root at maitproddns etc]# more ntp.conf
# Permit time synchronization with our time source, but do not
# permit the source to query or modify the service on this system.
restrict default kod nomodify notrap nopeer noquery
restrict -6 default kod nomodify notrap nopeer noquery

# Permit all access over the loopback interface.  This could
# be tightened as well, but to do so would effect some of
# the administrative functions.
restrict 127.0.0.1 
restrict -6 ::1

# Hosts on local network are less restricted.
#restrict 192.168.1.0 mask 255.255.255.0 nomodify notrap

# Use public servers from the pool.ntp.org project.
# Please consider joining the pool (http://www.pool.ntp.org/join.html).
# server 0.rhel.pool.ntp.org
# server 1.rhel.pool.ntp.org
# server 2.rhel.pool.ntp.org
server 0.au.pool.ntp.org
server 1.au.pool.ntp.org
server 2.au.pool.ntp.org
server 3.au.pool.ntp.org

#broadcast 192.168.1.255 key 42         # broadcast server
#broadcastclient                        # broadcast client
#broadcast 224.0.1.1 key 42             # multicast server
#multicastclient 224.0.1.1              # multicast client
#manycastserver 239.255.254.254         # manycast server
#manycastclient 239.255.254.254 key 42  # manycast client

# Undisciplined Local Clock. This is a fake driver intended for backup
# and when no outside source of synchronized time is available. 
server  127.127.1.0     # local clock
fudge   127.127.1.0 stratum 10

# Drift file.  Put this in a directory which the daemon can write to.
# No symbolic links allowed, either, since the daemon updates the file
# by creating a temporary in the same directory and then rename()'ing
# it to the file.
driftfile /var/lib/ntp/drift

# Key file containing the keys and key identifiers used when operating
# with symmetric key cryptography. 
keys /etc/ntp/keys

# Specify the key identifiers which are trusted.
#trustedkey 4 8 42

# Specify the key identifier to use with the ntpdc utility.
#requestkey 8

# Specify the key identifier to use with the ntpq utility.
#controlkey 8



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