nanog mailing list archives
Re: NIST NTP servers
From: Eygene Ryabinkin <rea+nanog () grid kiae ru>
Date: Wed, 11 May 2016 14:53:33 +0300
Tue, May 10, 2016 at 04:59:02PM +0200, Stephane Bortzmeyer wrote:
On Tue, May 10, 2016 at 10:52:28AM -0400, Valdis.Kletnieks () vt edu <Valdis.Kletnieks () vt edu> wrote a message of 37 lines which said:Note that they *do* have motivation to keep it working, simply because so much of their *own* gear (from gear for individual soldiers all the way to strategic bombers and aircraft carriers) wants a working GPS signal...Yes, but they may switch it off for civilian use (by going encrypted, for instance) at any time, if it is better for *their* operations.
Civilian signals are already degraded in terms of accuracy (without assisted GPS) and military ones are encrypted (but see [1]). The primary reason for encryption is, by the way, to address spoofing issues for the mil people themselves, but it is also good not to arm the potential enemy with the precise coordinates or to be able to do spoofing for them. And since many civilian, but nonetheless, vital orgs are using civilian parts, it could be hard to shut it off without affecting some parts of the infrastructure. Not that nobody wants that, but it will give an unneeded resonance and could lead to the terrible mess. [1] http://www.gps.gov/technical/codeless/ -- Eygene Ryabinkin, National Research Centre "Kurchatov Institute" Always code as if the guy who ends up maintaining your code will be a violent psychopath who knows where you live.
Current thread:
- NIST NTP servers b f (May 09)
- Re: NIST NTP servers Mel Beckman (May 09)
- 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 Mel Beckman (May 09)
- 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)