[tor-bugs] #15228 [Tor]: Identify candidates for FallbackDir, and ship with a list of them

[Tor Bug Tracker & Wiki]

#15228: Identify candidates for FallbackDir, and ship with a list of them
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 Reporter:  nickm     |          Owner:
     Type:  defect    |         Status:  new
 Priority:  normal    |      Milestone:  Tor: 0.2.7.x-final
Component:  Tor       |        Version:
 Keywords:  tor-dist  |  Actual Points:
Parent ID:            |         Points:
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 Back long ago, we added a feature to allow torrc to list a bunch of
 FallbackDir entries.  These tell a client where to look for consensus
 directory documents, so that the clients don't just load the authorities
 down.

 It would be good if we shipped with such a list.

 One idea has been to identify directories that have:
   * a stable IP:Port over a long time,
   * reasonably good uptime (as a fraction)
   * good bandwidth
   * a contact address.

 Then, contact the admins of these directory caches and ask them for
 permission to put them on a list.

 (See also #8374)

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/15228>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
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