On 2021/12/25 08:39, Crystal Kolipe wrote: > On Sat, Dec 25, 2021 at 11:09:32AM -0000, Stuart Henderson wrote: > > On 2021-12-22, ue...@danwin1210.de <ue...@danwin1210.de> wrote: > > > How can I reload date from ntpd after boot? > > > > rcctl stop ntpd > > rdate $timeserver > > rcctl start ntpd > > Note that rdate doesn't support the concept of constraints as > ntpd does, so it's entirely possible for someone who can observe > the outgoing request, (to see the random timestamp that we send), > and spoof a response from the ntp server, to deliberately cause > your clock to be set incorrectly.
Yes, but on the other hand it does work reliably if the RTC is wrong, whereas constraints doesn't allow moving the clock backwards.
