[189259] in North American Network Operators' Group
Re: NIST NTP servers
daemon@ATHENA.MIT.EDU (Tony Finch)
Fri May 13 06:08:40 2016
X-Original-To: nanog@nanog.org
Date: Fri, 13 May 2016 11:08:36 +0100
From: Tony Finch <dot@dotat.at>
To: Jean-Francois Mezei <jfmezei_nanog@vaxination.ca>
In-Reply-To: <5734B81B.1020704@vaxination.ca>
Reply-To: Tony Finch <fanf2@cam.ac.uk>
Cc: nanog@nanog.org
Errors-To: nanog-bounces@nanog.org
Jean-Francois Mezei <jfmezei_nanog@vaxination.ca> wrote:
>
> Today, if someone were to jam the GPS signal in an areas in USA, you'd
> likely hear about large number of car accidents in the news before
> noticing your systems canMt get time from the GPS-NTP and went to a
> backup ip address (nist etc).
The USA and the UK governments regularly perform GPS jamming tests, but
they do so in remote areas. See
http://www.navcen.uscg.gov/?pageName=gpsServiceInterruptions
http://stakeholders.ofcom.org.uk/spectrum/gps-jamming-exercises/
(Dunno if other governments have similar exercises.)
Tony.
--
f.anthony.n.finch <dot@dotat.at> http://dotat.at/ - I xn--zr8h punycode
Lundy, Fastnet, Irish Sea, South Shannon: Northerly or northeasterly 4 or 5,
occasionally 6 except in south Shannon. Slight or moderate. Mainly fair. Good,
occasionally poor at first in south Lundy.
