From owner-freebsd-stable  Wed Aug 15 23:35:59 2001
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Message-Id: <200108160635.f7G6ZhW30007@harmony.village.org>
To: "Louis A. Mamakos" <louie@TransSys.COM>
Subject: Re: (OT) Re: NTPD in upcoming release? 
Cc: "Brandon S. Allbery KF8NH" <allbery@ece.cmu.edu>,
	Lamont Granquist <lamont@scriptkiddie.org>,
	"'freebsd-stable@freebsd.org'" <freebsd-stable@FreeBSD.ORG>
In-reply-to: Your message of "Sat, 11 Aug 2001 11:40:58 EDT."
		<200108111540.f7BFewn01097@whizzo.transsys.com> 
References: <200108111540.f7BFewn01097@whizzo.transsys.com>  <20010810221054.F26163-100000@coredump.scriptkiddie.org> <13790000.997536561@vpn48.ece.cmu.edu> 
Date: Thu, 16 Aug 2001 00:35:43 -0600
From: Warner Losh <imp@harmony.village.org>
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In message <200108111540.f7BFewn01097@whizzo.transsys.com> "Louis A. Mamakos" writes:
: No, what NTP does is set the time of your system to the *correct* time,
: and not just synchronized to some other clock.  There's an advantage to
: peering with multiple clocks so that you can detect an insane/broken
: clock, even one based on using a GPS receiver that you might own.  The
: algorithms for peer selection are every bit as important at the ones
: which determine offset and delay times.

And GPS may be turned off in your area at any time if the US
Government doesn't want it to be used there.  There are also many
installations that external antennas aren't possible and a permanant
place to isntall the gps receiver has too much building between it and 
the birds to acquire them.

Warner

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