Andreas Krey: > On Wed, 31 Oct 2012 09:05:36 +0000, adrelanos wrote: > ... >> How is the clock synced right now? NTP? Because without the clock being >> correct, Tor and/or hidden services won't work. > > I have a node that is off by 50 minutes (the VPS provider won't bother, > and I can't set the clock within), but it seeminly does everything it > is supposed to do, including its hidden service. Except, of course, > for all the warnings in the log.
For relays that might not be such a big anonymity problem. For Tor clients and hidden services it is a big problem. Clock can be remotely measured. As far I understand, Tor leaks time to to entry guards: https://trac.torproject.org/projects/tor/ticket/4852 http headers also leak the time, that why it's dangerous for hidden services. Also bad for Tor Browser: https://trac.torproject.org/projects/tor/ticket/3059 I think telling "my clock is off X minutes" in public with your name attached is a bad idea. > How much skew is needed to actually > stop tor from working? For hidden services it's 30 minutes. https://trac.torproject.org/projects/tor/ticket/4246 See https://lists.torproject.org/pipermail/tor-talk/2012-February/023264.html for Tor in general. _______________________________________________ tor-talk mailing list [email protected] https://lists.torproject.org/cgi-bin/mailman/listinfo/tor-talk
