Re: NTP

Why would you put AD servers in between NTP master and CORE
switches/routers ? I would not trust MS handling of time, based on
my memories of comments on the NTP.org folks.

Nowadays, http://twiki.ntp.org/bin/view/Support/WindowsTimeService
states:

   Windows Time Service servers report a precision of -6, and do not
   appear to interpolate time between system clock ticks. This limits
   their absolute accuracy to 116 ms, far below that of the reference
   ntpd implementaion. However, this accuracy is suitable for many
   networks and applications.

-Carlos

Pavel Bykov @ 16/11/2011 10:15 -0300 dixit:
> In the real world, one way would be:
> GPS Antenna > NTP Master > Redundant AD Servers > Redundant CORE
> switches/routers
> Secure using standard hardening practices. Fyzical too, so make sure, no
> one gets on the roof to steal your antenna, lock NTP master, secure-shell
> only, etc.
>
>
> On Sun, Nov 6, 2011 at 10:22 PM, Paul Tim <paultim68_at_gmail.com> wrote:
>
>> Hi All
>> I tested NTP configuration in our lab running on cisco router 2611. In real
>> world scenario where do you place the NTP Router in the network. To secure
>> the box what should I look-out for.
>>
>> thanks
>> Paul
>>
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-- 
Carlos G Mendioroz  <tron_at_huapi.ba.ar>  LW7 EQI  Argentina
Blogs and organic groups at http://www.ccie.net