NTP Server

Jack Carrozzo jack at crepinc.com
Sun Oct 24 12:14:05 CDT 2010


More than likely, it's more important that all your machines are synced
accurately in time to each other, vs. a wider sync range that's
statistically closer to the 'real' value.

-Jack Carrozzo

On Sun, Oct 24, 2010 at 1:09 PM, Randy Bush <randy at psg.com> wrote:

> > 1) How necessary do you believe in local NTP servers? Do you really
> >    need the logs to be perfectly accurate?
>
> what is "perfectly accurate?"  perfection is not very realistic.  to
> what use do you put these logs?  what precision and jitter are required
> for that use?
>
> imiho, if you are just comparing router and server log files, run off
> public.  if you are trying to do fine-grained measurement, you are going
> to invest a lot in clock and propagation research.
>
> > 2) If you do have a local NTP server, is it only for local internal
> >    use, or do you provide this NTP server to your clients as an added
> >    service?
>
> i would generally let customers chime off routers which are strat 2 or
> 3.  if a customer has other needs, then they can deal.  if they are
> really concerned, they should not bet on me anyway.
>
> > 3) If you do have a local NTP server, do you have a standby local NTP
> >    server or do you use the internet as your standby server?
>
> again, depends on your needs.
>
> randy
>
>



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