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 10.98.0.5 as the NTP server:
subnet 10.98.0.0 netmask 255.255.0.0 {
...
option ntp-servers 10.98.0.5;
}
and perhaps also use "tcode" and "time-offset" options to set the
timezone.
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.
Mukund
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