nanog mailing list archives
Re: NIST NTP servers
From: Valdis.Kletnieks () vt edu
Date: Wed, 11 May 2016 13:54:25 -0400
On Wed, 11 May 2016 15:36:34 -0000, "Jay R. Ashworth" said:
CDMA and GSM are false diversity: both network types nodes *get their time* from GPS, so far as I know.
I'll make the fairly reasonable assumption that most readers of this list have networks that span multiple buildings. If somebody is managing to figure out that you have a GPS in Building 37, and a GPS-based CDMA up on the corner of Building 3, and the *other* 4 clocks at other locations and getting close enough to all of them at the same time to conduct a successful spoofing attack, all just to move your time source a few seconds off.... ... then the fact that GPS is spoofable is probably *NOT* your biggest security problem.
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Current thread:
- RE: NIST NTP servers, (continued)
- 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)
- Re: NIST NTP servers Jay R. Ashworth (May 11)
- Re: NIST NTP servers Valdis . Kletnieks (May 11)
- Re: NIST NTP servers Mel Beckman (May 11)
- Re: NIST NTP servers Eric Kuhnke (May 11)
- Re: NIST NTP servers Jean-Francois Mezei (May 12)
- Re: NIST NTP servers Mel Beckman (May 12)
- Re: NIST NTP servers Leo Bicknell (May 11)
- Re: NIST NTP servers Brandon Vincent (May 11)
- Re: NIST NTP servers Jon Meek (May 11)
- Re: NIST NTP servers Josh Reynolds (May 11)
- Re: NIST NTP servers Lamar Owen (May 13)
- Re: NIST NTP servers Mel Beckman (May 13)