[time-nuts] time-c-b.nist.gov replaces time-c.timefreq.bldrdoc.gov on Oct. 5th

Steven Sommars stevesommarsntp at gmail.com
Thu Nov 2 20:56:22 EDT 2017

Judging by http://tf.nist.gov/tf-cgi/servers.cgi, the current round of NIST
server changes is complete.
All of the new servers now respond to requests from my NTP client.

A number of NIST and USNO ( http://tycho.usno.navy.mil/NTP/ ) sites are no
longer supported.

On Tue, Oct 3, 2017 at 1:10 AM, Andreas Ott <aott01 at gmail.com> wrote:

> This is relevant for operators pointing to NTP servers from NIST, and I saw
> this announcement only by chance on
> http://tf.nist.gov/tf-cgi/servers.cgi
> *On October 5th time-c-b.nist.gov <http://time-c-b.nist.gov> (new IP
> will replace time-c.timefreq.bldrdoc.gov
> <http://time-c.timefreq.bldrdoc.gov> (IP which will be
> turned off on that date*.
> Please update your ntp.conf file on or after October 5th. It appears that
> this is a hard cutover on that date as the new server is not yet
> responding.
> Note that there are IP address changes coming for
> time-a.timefreq.bldrdoc.gov, time-b.timefreq.bldrdoc.gov and
> time-d.boulder.nist.gov, but I can't see the dates for these yet.
> I don't know if there is a place where an announcement notice of these
> service changes would be published by NIST, if you know one, please reply.
> It is not mentioned on the Internet Time Service page.
> Thanks,
> -andreas (K6OTT)
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