[EMAIL PROTECTED] wrote:
Richard B. Gilbert wrote:
JCA wrote:
I have three Linux boxes, namely, A, B, and C, in my LAN. I use C
as the NTP server for my LAN. C, in turn, gets its synchronization
from some external NTP server.
Both A and B use the same (very simple) ntp.conf configuration file:
<snip>
This is what I consider a minimal NTP.CONF:
server x.x.x.x maxpoll 6
driftfile /etc/ntp.drift
enable auth
The "maxpoll 6" forces ntpd to update every 64 seconds.
"enable auth" prevents unauthorized people/systems
from messing with your system over the network.
That simple configuration is all you really need in almost
all cases.
- Mooron
Omit the "maxpoll 6". ntpd will adjust its poll interval within the
limits of the default values of MINPOLL and MAXPOLL to the currently
optimal value. Tampering with the values of MINPOLL and MAXPOLL will
generally result in sub optimal performance. Typical behavior is for
ntpd to start polling at 64 second intervals (MINPOLL) and gradually
increase the polling interval. The polling interval will sometimes
increase to MAXPOLL (2^10 or 1024 seconds) if conditions are ideal.
Translating the math I don't really follow into English, the shorter
poll intervals let ntpd correct large errors quickly and the long
intervals allow ntpd to correct small errors accurately.
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