[ntp:questions] NTP no internet connection

David J Taylor david-taylor at blueyonder.neither-this-bit.nor-this-bit.co.uk
Sat Feb 9 20:46:43 UTC 2008


flyersix wrote:
> I have a network that I would like to cordinate the time in without
> exposing it to the internet for NTP servers.
>
> Could I just setup NTP on one of my internal servers and set the
> clients to go to it for time syncs?  I know the time won't match the
> internet time but my thought is if I only need to change the time on
> the one server and then let the clients all go to it to update their
> time.
>
> Is this possible?

Your best bet is to get a local reference clock like a low-cost GPS 
receiver (about $50-$200 US).  I described a simple system here:

  http://narvik/blueyonder/ntp/FreeBSD-GPS-PPS.htm

Cheers,
David 





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