G4 cube (was Re: 68K Macs with MacOS 7.5 still in production use...)
Stefan Skoglund (lokal användare)
stefan.skoglund at agj.net
Tue Sep 13 18:00:52 CDT 2016
tis 2016-09-13 klockan 10:43 -0700 skrev Chuck Guzis:
> Heh, the first message that I got after I changed the PRAM battery and
> booted MacOS was that the system time didn't match the NTP time within
> reasonable limits. But there the oddity hit--if I wanted to get rid of
> the message, I had to open the Control Panel and manually set the time
> to something close to NTP--Mac OS did not offer to do it for me.
Which is how it is done in Linux today - if the system clock is to much
off ntpd won't touch it.
What would happen if the selected ntp server which ntpd wants is cracked
and intentionally serving false time ?
For ntpd it is a security feature that it won't change a system time
which is badly out of sync.
ntp is intentionally designed so that it will only change system time
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