[ntp:questions] Testing Sync Across Several Systems

T g4173c at motorola.com
Mon Jul 20 15:20:37 UTC 2009


>
> Does the problem manifest under all three operating systems??  Do all
> the machines involved run 24x7?  Is the network available 24x7?  What
> are you using for a "master server"?  Where does the "master server "
> get time????

Hi:

Disclaimer: I know very little about ntpd. With that said.

These are all 24x7 machines all over the world. I *think* it's the
Solaris boxes that are causing us problems, but
can not confirm that a the moment. The Master Server is a Linux Redhat
5 machine. It's configuration is:

# Specify the key identifier to use with the ntpq utility.
#controlkey 8
restrict 172.20.21.23 mask 255.255.255.255 nomodify notrap noquery
restrict 172.20.21.32 mask 255.255.255.255 nomodify notrap noquery
server time.nist.gov
restrict time.nist.gov mask 255.255.255.255 nomodify notrap noquery
server tick.usno.navy.mil
restrict tick.usno.navy.mil mask 255.255.255.255 nomodify notrap
noquery
server navobs1.gatech.edu
restrict navobs1.gatech.edu mask 255.255.255.255 nomodify notrap
noquery


I did add Jan's idea about and can do a "ntpq -p" and get:

# /usr/sbin/ntpq -p
     remote           refid      st t when poll reach   delay
offset  jitter
==============================================================================
 LOCAL(0)        .LOCL.          10 l   45   64  377    0.000
0.000   0.001
+time.nist.gov   .ACTS.           1 u  120  128  377   52.355
-1.866   0.465
+tick.usno.navy. .USNO.           1 u  108  128  377   26.781
2.844   3.366
*navobs1.gatech. .GPS.            1 u   56  128  377   29.986
-2.211   0.119
 tewks-cc1.globa .INIT.          16 u    - 1024    0    0.000
0.000   0.000
 tewks-cc2.globa .INIT.          16 u    - 1024    0    0.000
0.000   0.000
 tewks-cc3.globa .INIT.          16 u    - 1024    0    0.000
0.000   0.000
 tewks-cc4       .INIT.          16 u    - 1024    0    0.000
0.000   0.000
 tewks-cc5.globa .INIT.          16 u    - 1024    0    0.000
0.000   0.000
...

Got a couple of quests here. He had "box1thru50.domain.tld" What does
the ".tld" mean?
I dropped that in the configuration file... Is the ".INIT." in the
refid field a problem? These are
all Solaris boxes...

Thanks
  Tom




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