Re: [dhcwg] [ntpwg] Fwd: New Version Notification for draft-ogud-dhc-udp-time-option-01.txt

Harlan Stenn <stenn@ntp.org> Mon, 02 December 2013 05:39 UTC

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From: Harlan Stenn <stenn@ntp.org>
To: Hal Murray <hmurray@megapathdsl.net>
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Comments: In-reply-to Hal Murray <hmurray@megapathdsl.net> message dated "Sun, 01 Dec 2013 20:47:34 -0800."
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Date: Mon, 02 Dec 2013 05:37:27 +0000
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Cc: NTP Working Group <ntpwg@lists.ntp.org>, "dhcwg@ietf.org WG" <dhcwg@ietf.org>, Ted Lemon <ted.lemon@nominum.com>, Bernie Volz <volz@cisco.com>
Subject: Re: [dhcwg] [ntpwg] Fwd: New Version Notification for draft-ogud-dhc-udp-time-option-01.txt
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We already know we want to discuss how long NTP will use an IP it got
from a DNS lookup.

We know there is no good API to get the TTL from this lookup.

An IP can easily be moved to another machine; there's no reason to have
a TTL for these.

On the other hand, there is a way to update ntpd's config file.

See http://support.ntp.org/Dev/GettingNtpdItsConfiguration for more
information, and we might want to look at "refreshing" URL-based
configurations on a schedule.

H