TCLUG Archive
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Time Sync with ntp-4.0.98a
I have having trouble getting my servers synchronizing with each
other. Can anyone give me some help with this?? I have quite a time
trying to understand the documentation that comes with it.
For now lets say that I have two servers behind a Windows
Firewall/Proxy server that I want to sync. with each other. The
master time server on the LAN will have the IP 97.0.1.76. This
server will also need to go out through the proxy (97.0.1.7) to keep
in sync. with some Internet source. However, this connection is only
up during business hours. The ''client' I am trying to get to sync. with
97.0.1.76 is 97.0.1.75. Also, the proxy server maps any traffic
from the LAN on port UDP 123 to a ntp server on the Internet.
At this point I can use 'ntpdate 97.0.1.7' from either machine to step
a given server's clock to the correct time. I run '/etc/rc.d/init.d/ntpd
start' to start the ntpd daemon on each server and let them run for a
while. 97.0.1.76 - the master seems to being in contact with the
time source on the Internet, but none of the other servers on the LAN
can get their time from 97.0.1.76.
Following are the two /etc/ntp.conf files and the output from running
'ntpq -p' on each.
-----------------------------------------------------------------------
97.0.1.76 Master time server for LAN
-----------------------------------------------------------------------
server 97.0.1.7 # Internet time source from dialup #1
server 97.0.2.7 # Internet time source from dialup #2
server 127.127.1.1 # Sync. with myself
fudge 127.127.1.1 stratum 10 # Indicate my own clock is poor
driftfile /etc/ntp/drift
statsdir /var/ntp/ntpstats
multicastclient # listen on default 224.0.1.1
broadcastdelay 0.008
authenticate no
-----------------------------------------------------------------------
Results of 'ntpq -p'
remote refid st t when poll reach delay offset jitter
=============================================
=================================
*ip-1-007 128.105.201.11 2 u 954 1024 377 196.895 -
243.29 156.889
+ip-2-007 192.5.41.41 2 u 93 1024 177 302.682 -
138.97 73.861
LOCAL(1) LOCAL(1) 10 m 45 64 377 0.000 0.000
0.000
-----------------------------------------------------------------------
97.0.1.75 'client' on LAN
-----------------------------------------------------------------------
server 97.0.1.76
server 127.127.1.1 # local clock
fudge 127.127.1.1 stratum 10
driftfile /etc/ntp/drift
multicastclient # listen on default 224.0.1.1
broadcastdelay 0.008
authenticate no
-----------------------------------------------------------------------
Results of 'ntpq -p'
-----------------------------------------------------------------------
remote refid st t when poll reach delay offset jitter
=============================================
=================================
97.0.1.76 0.0.0.0 16 u - 64 0 0.000 0.000
4000.00
*LOCAL(1) LOCAL(1) 10 l 17 64 377 0.000 0.000
0.000
-----------------------------------------------------------------------
If anyone can shed some light on the problem here I would appreciate
it!
Thanks,
Mike