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Re: [tor-talk] I've yet to understand <clock skew> attacks on hidden services
>> EVERYONE should be running NTP, of course, not the relatively few that do.
>> If you happen to still be on a windows machine, here is a FREE utility
> And if you prefer the open source NTP standard that everyone else uses...
> And I'm quite certain that XP and newer have adequate native knobs,
> though likely only in ntpdate via cron fashion.
As far as I know (from memory -- no links), by default, Windows XP will
automatically contact a Microsoft time server (I don't know what
protocol) once a week. The URL and update period can be adjusted. XP
*might* also contact the time server immediately after boot-up. I have
also seen, for reasons unknown, the time on a public computer running XP
drift further and further from the correct time.
One time I tried to look up under what circumstances the automatic time
setting on XP would ignore the time server. Microsoft described what XP
*might* do rather than what it *would* do. (sigh)
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