Eino-Ville Talvala wrote:
Richard B. Gilbert wrote:
Eino-Ville Talvala wrote:
Ok,
I've been messing with this for a few weeks, and haven't yet managed
to get NTP to where I'd like to be (and where I think it should be
able to be).
<snip>
<UNIVERSITY> 84 -2.083 115.705 931.227 7.427 46.999
14.830
<DEPARTMENT> 84 4.506 7.546 41.621 2.652 39.808
14.828
<SECOND MACHINE> 85 1.590 3.878 14.613 1.384 32.507
18.043
----------------------------------------------------
And here's the driftfile:
-96.459
I'm a little puzzled by the low values of "cnt". With 84-85 samples
per day, it looks as if your system is polling the servers at the
maximum poll interval of 1024 seconds. Did you, by any chance, tamper
with the default values of MINPOLL and MAXPOLL? It's generally a poor
idea. Ntpd will adjust the poll interval upwards and downwards as
conditions change and as limited by MINPOLL and MAXPOLL. The defaults
allow for the conditions usually found. By setting MINPOLL to 10, you
force the longer polling interval even when ntpd needs a shorter
interval to achieve good synchronization!
I've certainly not intentionally changed it anywhere - if that's an
ntp.conf setting, I haven't changed it.
I should clarify a bit - I just added the 3 public pool servers and
turned off SELinux protection for ntpd this morning, so I don't yet know
if those changes may fix my problem.
Look at your /etc/ntp.conf. In that file, look at the server
statements. Do they include the keyword MINPOLL? Or MAXPOLL?
I suspect that you have server statements that look like this:
server ntp1.abc.org minpoll 1024
If you find minpoll and/or maxpoll keywords, remove them and their
associated values and restart ntpd. It might be a good idea to make a
backup copy of the ntp.conf file before changing it.
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