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Cloudflare Time Services

124 pointsby mahnouelalmost 6 years ago

14 comments

redmalmost 6 years ago
It seems to me that CloudFlare should just sponsor servers for inclusion in the long-standing global NTP pools.<p><a href="https:&#x2F;&#x2F;www.ntppool.org&#x2F;en&#x2F;" rel="nofollow">https:&#x2F;&#x2F;www.ntppool.org&#x2F;en&#x2F;</a>
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amclennonalmost 6 years ago
I&#x27;m a huge fan of Cloudflare in general, but sometimes I&#x27;m a bit uncomfortable with how much critical infrastructure is increasingly consolidated into a few single entities.
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maxclarkalmost 6 years ago
So frustrated that Cloudflare didn&#x27;t just add resources&#x2F;support the existing NTP Pool. Hard to even pretend their motives are altruistic at this point.
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jrockwayalmost 6 years ago
Are the local time servers stratum 1, or do they have some central stratum 1 source that they then distribute out to the edge datacenters?<p>What&#x27;s the value over just building your own stratum 1 source? (Shameless plug: <a href="https:&#x2F;&#x2F;github.com&#x2F;jrockway&#x2F;beaglebone-gps-clock&#x2F;blob&#x2F;master&#x2F;README.md" rel="nofollow">https:&#x2F;&#x2F;github.com&#x2F;jrockway&#x2F;beaglebone-gps-clock&#x2F;blob&#x2F;master...</a>)
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SEJeffalmost 6 years ago
I think it would be super interesting if they started offering IEEE 1588 v2 aka Precision Time Protocol, but it would be much harder to offer compared to ntp. What they&#x27;re almost certainly doing here is just running a cable to the roof where they have a GPS antenna and then run it into their datacenters into a time appliance (less likely) or a GPS pci card in one of their servers (more likely) that they then send out to those who want access.
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cbgonzalmost 6 years ago
Hmm, tried it out just now (Win10) and I´m getting a ... timeout! Go figure... (location is Brazil btw)
wblalmost 6 years ago
Hello, I&#x27;m one of the engineers that worked on it. Feel free to ask me questions.
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jjoergensenalmost 6 years ago
I assume Cloudflare does not serve leap-smeared time? In regards to rough-time, does anyone know what the result would be when both Cloudflare and Google are used at the same time, and Google serves leap-smeared time?
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mobilemidgetalmost 6 years ago
“For many applications, accurate network time isn’t essential: it suffices to be within 10 seconds of real time”<p>I can’t imagine any application where the more accurate isn’t preferred. And 10 secs seems like quite a bit imho
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yingw787almost 6 years ago
This link on the site takes me to a 404 (not sure why, I&#x27;m presuming it&#x27;s a static site?): <a href="https:&#x2F;&#x2F;developers.cloudflare.com&#x2F;time-services" rel="nofollow">https:&#x2F;&#x2F;developers.cloudflare.com&#x2F;time-services</a><p>I think it&#x27;d be nice to have some middleware hooking into the build process that curls every link at a depth of 1 to ensure that HTTP 400&#x2F;500 error codes aren&#x27;t returned.
Otnixalmost 6 years ago
Cloudflare most problem with cname for RSS
techslavealmost 6 years ago
as usual where CF is involved, no one here gets it. this is TTL information for CF, at the expense of everyone else.
aquabeaglealmost 6 years ago
<a href="https:&#x2F;&#x2F;www.cloudflare.com&#x2F;resources&#x2F;images&#x2F;slt3lc6tev37&#x2F;5SBj8VBjfRHi89ixodi5Fb&#x2F;c0909c4f3f237dfac63303c402cec8d1&#x2F;sad_clock_2x.png" rel="nofollow">https:&#x2F;&#x2F;www.cloudflare.com&#x2F;resources&#x2F;images&#x2F;slt3lc6tev37&#x2F;5SB...</a><p>Has this designer never seen an actual clock?
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johnklosalmost 6 years ago
Personally, I don&#x27;t trust Cloudflare. There&#x27;s just something a bit shady about a company that defends web sites which pretend to have Adobe Flash updaters or pretend to be bankofamerica.com as free speech.<p>That said, I don&#x27;t imagine they could screw up NTP too badly, except, of course, logging and tracking users.<p>I hope they don&#x27;t smear leap seconds like Google, or do any of a number of other dumb things simply because they&#x27;re big enough to get away with it:<p><a href="https:&#x2F;&#x2F;www.theregister.co.uk&#x2F;2016&#x2F;12&#x2F;02&#x2F;google_public_ntp_servers&#x2F;" rel="nofollow">https:&#x2F;&#x2F;www.theregister.co.uk&#x2F;2016&#x2F;12&#x2F;02&#x2F;google_public_ntp_s...</a>
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