nanog mailing list archives

Re: NIST NTP servers


From: "Majdi S. Abbas" <msa () latt net>
Date: Mon, 9 May 2016 23:12:22 -0400

On Tue, May 10, 2016 at 03:08:16AM +0000, Mel Beckman wrote:
NTP has vulnerabilities that make it generally unsuitable for 
provider networks. I strongly recommend getting a GPS-based 
time server. These are as cheap as $300. Here is one I use quite a bit:

        So how does this stop from distributing time to their
customers via NTP?

        GPS doesn't save the protocol, in particular where the S1 
clocks involved are embedded devices with rather coarse clocks and
timestamping.

        --msa


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