[tor-relays] NTP and tor

nusenu nusenu-lists at riseup.net
Mon Jul 30 22:46:00 UTC 2018

Michael Brodhead:
> I've been reading up on NTP a bit and using ntpdate to occasionally
> update the system time is now deprecated. We're supposed to run ntpd.
> Ntpd docs make it sound like ntpd needs to run a listener to function
> at all.

> I'd rather not add additional attack surface to my relay.

I agree.

The daemon would give you better precision and less "jumps",
but running ntpdate via cron regularly should do it as well
(tor does not need super sub-second exact time)


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