On Wed, Dec 20, 2023 at 12:23:31AM +0100, Karel Lucas wrote:
>Dear Mr. Henderson,
>
>From your answer I understand that to use the ntp daemon the interfaces still
>need an IP address. Unfortunately, a GPS unit is not available or desirable,
>so it seems to me that I will have to do it without a calibrated time, if
>there is no other option.
Having an out-of-band management interface is a pretty standard architecture
concept these days. Add a third NIC and control access by local pf policies,
multi-factor authentication, etc.
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