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Re: [gpsd-dev] Fwd: Re: Clarifications needed for the time-service HOWTO
From: |
Gary E. Miller |
Subject: |
Re: [gpsd-dev] Fwd: Re: Clarifications needed for the time-service HOWTO |
Date: |
Thu, 24 Oct 2013 16:47:45 -0700 |
Yo Greg!
On Thu, 24 Oct 2013 19:38:37 -0400
Greg Troxel <address@hidden> wrote:
> > Many programs, like ssh and rsync, have -4 and -6 options to prefer
> > one over the other. Nice to have after you have identified your
> > problem and your upstream will not fix it.
>
> Sure. ntpq does too. I meant something more, because "geolocation"
> is really "network topology location", and one's v6 location and v4
> location are different. But given that ntpd does dns queries over
> some AF to a local resolver and the resolver might be dual-stack and
> use either, the notion that geolocation hints obtained from a server
> using one AF are valid for the other AF is both suspect and hard to
> work around.
Yeah, in general IPv6 geolocation is a disaster. Which is why I hope
the ntp pool never uses any geolocation.
RGDS
GARY
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Gary E. Miller Rellim 109 NW Wilmington Ave., Suite E, Bend, OR 97701
address@hidden Tel:+1(541)382-8588
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Re: [gpsd-dev] Fwd: Re: Clarifications needed for the time-service HOWTO, Harlan Stenn, 2013/10/24