NTP through DNS?

Mukund Sivaraman muks at mukund.org
Wed Sep 19 14:16:45 UTC 2018

On Wed, Sep 19, 2018 at 10:08:34AM -0400, Mauricio Tavares wrote:
> Stupid question: can I publish/query the NTP server through DNS the
> same way I can ask who is doing LDAP?

An NTP serice doesn't belong to a domain, so maybe not (I don't know of
one off my mind).

For provisioning, there are DHCP options to do this. E.g., with ISC-DHCP
and as the NTP server:

subnet netmask {
       option ntp-servers;

and perhaps also use "tcode" and "time-offset" options to set the

But a real bummer is that some DHCP clients (e.g., Android phones) do
not make use of this option, and don't even provide a config setting to
do so. IIRC they synchronize time via the cell phone signal.


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