Re: [Ntp] Circular dependencies

Hal Murray <hmurray@megapathdsl.net> Sun, 17 January 2021 09:20 UTC

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To: Warner Losh <imp@bsdimp.com>
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In-Reply-To: Message from Warner Losh <imp@bsdimp.com> of "Sat, 16 Jan 2021 21:11:51 MST." <CANCZdfpCBVtxB5ha3fka8BLznb9ZnkhaXhM4d0sN0oUDf3NUSQ@mail.gmail.com>
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Date: Sun, 17 Jan 2021 01:20:13 -0800
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Subject: Re: [Ntp] Circular dependencies
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imp@bsdimp.com said:
> Yes. There are many challenges. Making precise time a requirement for DNS in
> order to get the time is not a circular dependency that should be undertaken
> lightly. 

Should we write up something on this area?  Is there a better group?

Is this one area or two?  Circular dependencies vs long shelf life?  Or are 
they tangled?

--------

I think a reasonable battery could drive a CMOS clock for 10 years. 

I could imagine a certificate and an IP Address good for 10 years.  Maybe 3 of 
them so you can survive if one breaks or out vote the bad guy if one of the 
root certificates leaks.



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