nanog mailing list archives
Re: NIST NTP servers
From: Tony Finch <dot () dotat at>
Date: Fri, 13 May 2016 11:08:36 +0100
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.
Current thread:
- Re: NIST NTP servers, (continued)
- Re: NIST NTP servers Spencer Ryan (May 09)
- Re: NIST NTP servers Majdi S. Abbas (May 09)
- Re: NIST NTP servers Steven Miano (May 10)
- Re: NIST NTP servers Stephane Bortzmeyer (May 10)
- Re: NIST NTP servers Valdis . Kletnieks (May 10)
- Re: NIST NTP servers Stephane Bortzmeyer (May 10)
- Re: NIST NTP servers Josh Reynolds (May 10)
- Message not available
- Re: NIST NTP servers Valdis . Kletnieks (May 10)
- Re: NIST NTP servers Eygene Ryabinkin (May 11)
- Re: NIST NTP servers Jean-Francois Mezei (May 12)
- Re: NIST NTP servers Tony Finch (May 13)
- Re: NIST NTP servers Ryan Harden (May 11)
- RE: NIST NTP servers Chuck Church (May 10)
- Re: NIST NTP servers Gary E. Miller (May 10)
- Re: NIST NTP servers Jared Mauch (May 10)
- RE: NIST NTP servers Chuck Church (May 10)
- Re: NIST NTP servers Gary E. Miller (May 10)
- Re: NIST NTP servers Mel Beckman (May 10)
- Re: NIST NTP servers Leo Bicknell (May 11)
- Re: NIST NTP servers Josh Reynolds (May 11)
- Re: NIST NTP servers Mel Beckman (May 11)