Hello Guys,
i have a problem my local server is not getting synchronized with ntpd server.
1)ntpq -p is giving the following output
remote refid st t when poll reach delay offset jitter
==============================================================================
ntp1 0.0.0.0 16 u - 64 0 0.000 0.000 4000.00
ntp2 0.0.0.0 16 u - 64 0 0.000 0.000 4000.00
(i)i know that if there is no * mark in front of any ntp server means no ntp server is running is my understanding correct?
(ii)in the above output of ntpq -p what is the significance of refid and it's value here is 0.0.0.0 can some body explain this?
2) while i am trying to restart ntps service it's failing and saying the following message
service ntpd start
ntpd: Synchronizing with time server: [FAILED]
Starting ntpd: [ OK ]
3) here i am pasting the /etc/ntp.conf file
vi /etc/ntp.conf
# Prohibit general access to this service.
driftfile /var/lib/ntp/drift
restrict 127.0.0.1
restrict 132.95.160.58 nomodify notrap noquery
restrict 132.95.160.127 nomodify notrap noquery
server ntp1 version 3
server ntp2 version 3
restrict default ignore
# Permit all access over the loopback interface. This could
# be tightened as well, but to do so would effect some of
# the administrative functions.
# -- CLIENT NETWORK -------
# Permit systems on this network to synchronize with this
# time service. Do not permit those systems to modify the
# configuration of this service. Also, do not use those
# systems as peers for synchronization.
# restrict 192.168.1.0 mask 255.255.255.0 notrust nomodify notrap
# --- OUR TIMESERVERS -----
# or remove the default restrict line
# Permit time synchronization with our time source, but do not
# permit the source to query or modify the service on this system.
# restrict mytrustedtimeserverip mask 255.255.255.255 nomodify notrap noquery
# server mytrustedtimeserverip
# --- NTP MULTICASTCLIENT ---
#multicastclient # listen on default 224.0.1.1
# restrict 224.0.1.1 mask 255.255.255.255 notrust nomodify notrap
# restrict 192.168.1.0 mask 255.255.255.0 notrust nomodify notrap
# --- GENERAL CONFIGURATION ---
#
# Undisciplined Local Clock. This is a fake driver intended for backup
# and when no outside source of synchronized time is available. The
# default stratum is usually 3, but in this case we elect to use stratum
# 0. Since the server line does not have the prefer keyword, this driver
# is never used for synchronization, unless no other other
# synchronization source is available. In case the local host is
# controlled by some external source, such as an external oscillator or
# another protocol, the prefer keyword would cause the local host to
# disregard all other synchronization sources, unless the kernel
(i)in the above ntp.conf file i found the following lines are these correct
132.95.160.58 and 132.95.160.127 are ntp servers we are using
restrict 132.95.160.58 nomodify notrap noquery
restrict 132.95.160.127 nomodify notrap noquery
4) pls also find ntpdate -d (ntp server )
ntpdate -d 132.95.160.58
11 Jun 14:43:38 ntpdate[12230]: ntpdate 4.1.2@1.892 Tue Feb 24 06:32:26 EST 2004 (1)
transmit(132.95.160.58)
transmit(132.95.160.58)
transmit(132.95.160.58)
transmit(132.95.160.58)
transmit(132.95.160.58)
132.95.160.58: Server dropped: no data
server 132.95.160.58, port 123
stratum 0, precision 0, leap 00, trust 000
refid [0.0.0.0], delay 0.00000, dispersion 64.00000
transmitted 4, in filter 4
reference time: 00000000.00000000 Thu, Feb 7 2036 14:28:16.000
originate timestamp: 00000000.00000000 Thu, Feb 7 2036 14:28:16.000
transmit timestamp: cddb261d.f2249a13 Thu, Jun 11 2009 14:43:41.945
filter delay: 0.00000 0.00000 0.00000 0.00000
0.00000 0.00000 0.00000 0.00000
filter offset: 0.000000 0.000000 0.000000 0.000000
0.000000 0.000000 0.000000 0.000000
delay 0.00000, dispersion 64.00000
offset 0.000000
11 Jun 14:43:42 ntpdate[12230]: no server suitable for synchronization found
5) drift file from /var/lib/ntp/drift
82.107
is it compulsory drift value always should be 0 if it's so how can we change here this value to 0.
kindly check this and provide your valuable feedback why ntp server is not synchronizing with my server.
with regards,
Srinu
