[ntp:questions] Implementing NTP in a legacy system

Steve Kostecke kostecke at ntp.org
Wed Dec 12 22:54:56 UTC 2012

On 2012-12-12, David Woolley <david at djwhome.demon.co.uk> wrote:

> Steve Kostecke wrote:
>>> 2. Is it possible to prevent ntpd on the gateway from setting the
>>> system time on the gateway?
>> The only way to do so is to use the Undisciplined Local Clock driver
>> as your "time source" and have some other process discipline (i.e.
>> set) the system time on the "gateway".
> The way I read this was that the gateway system clock must be
> decoupled from the proprietary time source, so one cannot use the
> proprietary source to discipline the clock and then configure ntpd
> with the local clock as source.
> If that reading is correct, you need to implement an SNTP server more
> or less from scratch. As all the complexity is in the client, that
> should not be too onerous.

Why are you telling _me_ this?

The OP asked about ntpd and I answered his question. 

Steve Kostecke <kostecke at ntp.org>
NTP Public Services Project - http://support.ntp.org/

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