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October 2017

SCIENTIFIC-LINUX-USERS@LISTSERV.FNAL.GOV

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Subject:
From:
R P Herrold <[log in to unmask]>
Reply To:
R P Herrold <[log in to unmask]>
Date:
Wed, 18 Oct 2017 17:12:46 -0400
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On Wed, 18 Oct 2017, Howard, Chris wrote:

> Is it possible the two boxes are talking to two different servers?

as the initial post mentioned and showed it was using remote 
host lists to a pool alias, almost certainly -- 

as a way around, set up ONE unit to act as the local master, 
and then sync against it, to get 'site coherent' time

[a person with more than one clock is never quite _sure_ what 
time is correct ;) ]


for extra geek points, spend $25 on AMZN, and get a GPS USB 
dongle; run a local top strata server (the first three 
lintes of the following)

[root@router etc]# ntpq -p
     remote           refid      st t when poll reach   delay   
offset  jitter
 =============================================================================
 GPS_NMEA(0)     .GPS.            0 l    -   16    0    0.000    
0.000   0.000
 SHM(0)          .GPS.            0 l    -   16    0    0.000    
0.000   0.000
 SHM(1)          .PPS.            0 l    -   16    0    0.000    
0.000   0.000
+ntp1.versadns.c .PPS.            1 u  665 1024  377   51.817  
-12.510  19.938
*tock.usshc.com  .GPS.            1 u  294 1024  377   34.608   
-8.108  10.644
+clmbs-ntp1.eng. 130.207.244.240  2 u  429 1024  377   31.520   
-5.674   7.484
+ntp2.sbcglobal. 151.164.108.15   2 u  272 1024  377   23.117   
-6.825  10.479
+ntp3.tamu.edu   165.91.23.54     2 u 1063 1024  377   63.723   
-3.319  16.813
[root@router etc]# 


configuring ntp.conf is not all that hard

-- Russ herrold

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