[ntp:questions] NTP on local networks
Richard B. Gilbert
rgilbert88 at comcast.net
Thu Aug 2 14:29:16 UTC 2012
On 7/30/2012 11:47 AM, Will Shackleford wrote:
> We have several computers with several different operating systems on a
> local network with no radios and no internet connection.
> The main goal is to keep them synchronized with each other.
> One frustration I have had is that clients tend to refuse to connect to
> servers on the network
> that are "not good enough". I assume "not good enough" means too high a
> stratum although the
> error messages are not that clear.
How is a system designated "not good enough"?
How about giving us the full and exact text of whatever message you are
"Cut and paste" would be best but a carefully made copy should serve.
> My current solution is to take a laptop to another room with an internet
> connection, let it sit for an hour and
> then bring it back to connect the local network where finally the other
> computers will accept it and synchronize with it.
> How can I configure a client/peer to always accept a server as "good
> enough" or at least always accept the server
> when no other server can be contacted? (please answer for any platform
> below you can)
You can't without doing violence!
There is a fairly simple and not terribly expensive solution.
It's a GPS timing receiver! They were available for about $100 the last
time I looked. Can you put an antenna smaller than a hocky-puck
where it will have a "view" of the sky?
If you can,whip out your check book! There are other time broadcasts
that should be within a few milliseconds. WWV broadcasts time on
several freqencies 5MHz, 10MHz and several others. Canada and most other
countries also have a time broadcast .
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