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Re: [tor-bugs] #20539 [Core Tor/Tor]: Make sure fallback directories aren't running buggy versions / can deliver a recent consensus

#20539: Make sure fallback directories aren't running buggy versions / can deliver
a recent consensus
--------------------------+------------------------------------
 Reporter:  teor          |          Owner:
     Type:  defect        |         Status:  needs_revision
 Priority:  Medium        |      Milestone:  Tor: 0.3.0.x-final
Component:  Core Tor/Tor  |        Version:
 Severity:  Normal        |     Resolution:
 Keywords:  fallback      |  Actual Points:
Parent ID:  #18828        |         Points:  0.5
 Reviewer:                |        Sponsor:
--------------------------+------------------------------------
Changes (by teor):

 * status:  needs_review => needs_revision


Comment:

 I think I might need to change this check to tolerate consensuses as old
 as REASONABLY_LIVE_CONSENSUS (24 hours), because of #20909.

 Ideally, we should only tolerate RELAY_CLOCK_SKEW (3 hours) or maybe even
 RELAY_CLOCK_SKEW - 2 hours = 1 hour, because directory mirrors should
 update in the first hour. (Check this with the dir-spec.)

--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/20539#comment:9>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
The Tor Project: anonymity online
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