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kopper 13th February 2010 23:23

NPT Server - NTP Client no sync
hi guys

since I got a secure area my linux servers don't not have internet connection at all...

so I've configured an NTP Linux server with this configuration but my NTP Linux Client are not sync the time with the NTP Server


1. I sync my NTP server to itselft

# ntpdate -du ntpserver
#service ntpd start
2. I syn my linux clients

# ntpdate -du ntpserver
ntp service for clients is stop

now my NTP server configuration


# 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 -6 ::1

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

# Use public servers from the project.
# Please consider joining the pool (

#broadcast key 42        # broadcast server
broadcastclient                # broadcast client
#broadcast key 42            # multicast server
#multicastclient              # multicast client
#manycastserver        # manycast server
#manycastclient 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    # local clock
fudge 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


when I run to sync my clients

#ntpdate -du ntpserver
results see the last line it says client is not sync by 87 what I have to do? which command so the time in my NTP client is the same as my NTP server?


13 Feb 15:19:14 ntpdate[7820]: ntpdate 4.2.2p1@1.1570-o Thu May 14 13:00:58 UTC 2009 (1)
Looking for host ntpserver and service ntp
host found : ntpserver
server, port 123
stratum 11, precision -20, leap 00, trust 000
refid [], delay 0.02582, dispersion 0.00012
transmitted 4, in filter 4
reference time:    cf2195ee.d011023f  Sat, Feb 13 2010 15:19:42.812
originate timestamp: cf219629.6559ce6f  Sat, Feb 13 2010 15:20:41.395
transmit timestamp:  cf2195d2.35601ffb  Sat, Feb 13 2010 15:19:14.208
filter delay:  0.02824  0.02586  0.02582  0.02585
        0.00000  0.00000  0.00000  0.00000
filter offset: 87.18836 87.18729 87.18728 87.18726
        0.000000 0.000000 0.000000 0.000000
delay 0.02582, dispersion 0.00012
offset 87.187280

13 Feb 15:19:14 ntpdate[7820]: step time server offset 87.187280 sec

thanks a lot

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