[ntp:questions] Re: NTP sync on a standalone network (Windows 2k)
Richard B. Gilbert
rgilbert88 at comcast.net
Fri Aug 18 12:12:12 UTC 2006
David J Taylor wrote:
> Hal Murray wrote:
>
>>In article <44e4e0a2$0$31030$626a54ce at news.free.fr>,
>>"Alexandre Carrausse" <alex_s_p_a_m at carrausse.com> writes:
>>
>>>Thanks, the GPS would be an option, but in the very secure site I am
>>>working in, I am afraid I will not even be allowed to install an
>>>antenna.
>
> []
>
>>>What is the approx cost of such systems?
>>
>>Do-it-yourself: Under $100 for a Garmin GPS 18 LVC. You also need
>>a PC. Old ones are probably OK.
>
>
> For example ..
>
> http://www.david-taylor.myby.co.uk/ntp/FreeBSD-GPS-PPS.htm
>
> .. including an antenna just poking out of the window. Of course, you
> probably can't open the windows either!
>
> David
>
>
If his site is really secure, he may have Windows but probably doesn't
have windows!!! His electronic equipment may have to meet the "Tempest"
criteria; e.g. any electromagnetic energy emissions do not contain
recoverable information. Add inner and outer chain link fences topped
with barbed wire, armed guards, and dogs. Your imagination can't be to
vivid!!!! ;-)
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