[ntp:questions] drift value very large and very unstable
Richard B. Gilbert
rgilbert88 at comcast.net
Wed Mar 12 13:21:29 UTC 2008
David Woolley wrote:
> Unruh wrote:
>> that is why there is a proposed file system standard. Log files in
>> /var/log/ntp say.
>> Drift file in /etc/ntp.drift
>> config file in /etc/ntp.conf
> I think they were referring to the Linux filesystem standard, and one of
> the things that does is to move things out of /etc. In particular,
> /etc/ntp.drift would never be allowed, because the file is updated
> Incidentally, a specimen configuration needn't include real server names.
It almost certainly SHOULD NOT contain real server names. At least a
specimen provided by the NTP group should not. A specimen provided by
an O/S vendor could properly include servers owned and operated by that
vendor as RedHat does.
If I were to write a sample ntp.conf it might look like this:
# NTP monitoring parameters
statistics peerstats clockstats
filegen peerstats file peerstats type day enable
filegen clockstats file clockstats type day enable
# Hardware Reference Clock
server 127.127.3.0 prefer # PST/Traconex 1020/1030 (Type 3 Unit 0)
# Network servers
server 192.168.1.20 iburst # Our local GPS server
server 10.1.1.103 # RFC-1918 address to fill out example
server 10.2.2.104 # Another RFC-1918 address. . . .
# Authentication parameters
trustedkey 2 3 4
controlkey 3 # To access the ntpq utility
requestkey 2 # To access the ntpdc utility
I might include more comments pointing out what the user needs to
customize and a link to the ntp documentation.
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